chore(stable): release 3.46.2 (#1121)

Closes #1105.

iOS Safari zooms the whole page in when a focused form control computes to
under 16px, and it does not zoom back out. Unlocking a gallery is a
client-side transition rather than a document navigation, so the zoom the
password field triggers carries straight into the gallery: the layout pans
horizontally and the header actions sit off-screen until the visitor
pinch-zooms out by hand. A real page load would have reset it.

`.input` and `.input-themed` are `text-sm`, so the field is 14px on every
phone, and GalleryPage inverts the breakpoint on top of that
(`text-sm sm:text-base` — 14px below 640px, where iOS zooms, and 16px above
it, where it never does).

Keyed to the POINTER, not a width. The zoom depends on the computed font size
and a touch device, never on how wide the viewport is — and a phone in
landscape is 667-956 CSS px, above any width you could call "phone". Measured
on the admin login page, which has no `sm:` override:

  main   portrait 390x844    14px    zooms
  main   landscape 844x390   14px    zooms
  main   iPad 820x1180       14px    zooms
  fixed  all three           16px
  fixed  desktop (mouse)     14px    unchanged, no zoom off touch

One media query rather than flipping each call site. `.input` alone backs 334
`<Input>` usages, but there are also ~440 raw inputs, selects and textareas
carrying their own `text-sm`, and Tailwind utilities sit in a later layer than
@layer components — so a fix at the component definition misses most controls
and any new `text-sm` silently reintroduces the bug.

The `:not()` on each selector is load-bearing, not decoration: it buys the
specificity to beat a utility class. Measured in a browser —

  input.text-sm     16px   (0,2,1 beats .text-sm)
  select.text-sm    14px   (0,0,1 loses)
  textarea.text-sm  14px   (0,0,1 loses)

24 selects and textareas in the tree carry `text-sm`, so the bare form would
have left them zooming. Checkbox and radio stay excluded so font-size never
sizes their box.

max(16px, 1em, 1rem) is a FLOOR, not a size. A flat 16px would make controls
that are already bigger smaller: Typography -> Large sets --font-size-base to
18px on body, so anything inheriting it would be clamped down and the setting
quietly ignored. Each term covers a case the others miss:

  normal (body 16)       16px      Large theme (body 18)    18px
  Small theme (body 14)  16px      browser default 20px     20px

The viewport meta is deliberately left alone: `maximum-scale=1` would suppress
the zoom by disabling pinch-to-zoom for everyone.

.env.example

@@ -56,8 +56,9 @@ DB_NAME=picpeak_prod
 # Admin Account (initial setup) — OPTIONAL
 # Leave these unset (default) to create your admin IN THE BROWSER on first run:
 # open /admin and PicPeak shows a setup screen. The one-time setup token is
-# printed to the backend logs (`docker compose logs backend | grep -i "setup token"`)
-# and saved to data/SETUP_TOKEN.
+# written to data/SETUP_TOKEN with mode 0600 — read it with
+# `docker compose exec backend cat /app/data/SETUP_TOKEN`. It is NOT logged
+# unless that write fails, so it never sits in `docker logs`.
 # Set ADMIN_PASSWORD to auto-create the admin on first boot instead (legacy;
 # credentials written to data/ADMIN_CREDENTIALS.txt).
 #ADMIN_USERNAME=admin

.github/workflows/docker-build.yml

@@ -203,6 +203,14 @@ jobs:
         format: 'sarif'
         output: 'trivy-backend-${{ env.PLATFORM_PAIR }}.sarif'
         severity: 'CRITICAL,HIGH'
+        # Base-image CVEs with no released fix are not actionable: the
+        # Dockerfiles already run `apt-get upgrade -y` behind a CACHEBUST,
+        # so a fix lands in the next build automatically. Reporting them
+        # buries the findings someone can actually do something about.
+        # Dropping them is also the precondition for ever setting
+        # exit-code: 1, which build-backend's comment flags as a
+        # deliberate follow-up.
+        ignore-unfixed: true
         timeout: '10m'
 
     - name: Upload Trivy scan results to GitHub Security tab
@@ -425,6 +433,14 @@ jobs:
         format: 'sarif'
         output: 'trivy-frontend-${{ env.PLATFORM_PAIR }}.sarif'
         severity: 'CRITICAL,HIGH'
+        # Base-image CVEs with no released fix are not actionable: the
+        # Dockerfiles already run `apt-get upgrade -y` behind a CACHEBUST,
+        # so a fix lands in the next build automatically. Reporting them
+        # buries the findings someone can actually do something about.
+        # Dropping them is also the precondition for ever setting
+        # exit-code: 1, which build-backend's comment flags as a
+        # deliberate follow-up.
+        ignore-unfixed: true
         timeout: '10m'
 
     - name: Upload Trivy scan results to GitHub Security tab

.github/workflows/tests.yml

@@ -30,6 +30,29 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
 
+    # The .picpeak restore suites gate their real-Postgres cases behind
+    # PICPEAK_PG_TEST_URL and `describe.skip` themselves out when it is
+    # unset — so until now they never ran here. That hid the half that
+    # matters: sequence resync, operator/role preservation across a
+    # cross-instance restore, and (with #1041) whether a SQLite-shaped
+    # row actually lands in Postgres with the right STORED VALUES rather
+    # than merely not throwing. Everything else in the suite still runs
+    # on SQLite; this service only un-gates those cases.
+    services:
+      postgres:
+        image: postgres:15-alpine
+        env:
+          POSTGRES_USER: picpeak
+          POSTGRES_PASSWORD: testpass
+          POSTGRES_DB: picpeak_test
+        options: >-
+          --health-cmd "pg_isready -U picpeak -d picpeak_test"
+          --health-interval 2s
+          --health-timeout 2s
+          --health-retries 30
+        ports:
+          - 5432:5432
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -52,6 +75,9 @@ jobs:
           # The S3 path itself is covered separately by the integration
           # suite when MinIO is provisioned.
           SKIP_S3_TESTS: 'true'
+          # Un-gates the real-Postgres cases in the .picpeak restore suites
+          # (see the `services:` note above). Absent it they silently skip.
+          PICPEAK_PG_TEST_URL: 'postgres://picpeak:testpass@127.0.0.1:5432/picpeak_test'
         run: |
           # Excluded suites — fail on upstream/beta too, tracked
           # separately as test-infra debt:

.gitignore

@@ -130,5 +130,8 @@ docker-compose.dev.yml
 # New layout development files
 new-layouts/
 
-# Generated CRM/accounting documents (runtime) — never commit
-backend/storage/business-docs/
+# Backend runtime storage (generated media, previews, thumbnails,
+# CRM/accounting documents) — never commit. Matches main: a dev instance
+# writes event photos into backend/storage/, and the narrower
+# business-docs-only rule let `git add -A` sweep them into a commit.
+backend/storage/

.release-please-manifest.json

@@ -1 +1 @@
-{".":"3.45.10"}
+{".":"3.46.2"}

CHANGELOG.md

@@ -5,6 +5,94 @@ All notable changes to PicPeak will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.46.2](https://github.com/PicPeak/picpeak/compare/v3.46.1...v3.46.2) (2026-08-21)
+
+
+### Bug Fixes
+
+* **ui:** stop iOS Safari zooming in on 14px form fields ([#1114](https://github.com/PicPeak/picpeak/issues/1114)) ([32db1c8](https://github.com/PicPeak/picpeak/commit/32db1c8052d324b09462a17859c7adb5ccfe56e3))
+
+## [3.46.1](https://github.com/PicPeak/picpeak/compare/v3.46.0...v3.46.1) (2026-08-19)
+
+
+### Bug Fixes
+
+* **preview:** generate lightbox previews for external/reference photos ([#1078](https://github.com/PicPeak/picpeak/issues/1078)) ([#1080](https://github.com/PicPeak/picpeak/issues/1080)) ([6df42ab](https://github.com/PicPeak/picpeak/commit/6df42ab22c705bcb731862db1ed5a27de0a64f30))
+
+## [3.46.0](https://github.com/PicPeak/picpeak/compare/v3.45.16...v3.46.0) (2026-08-16)
+
+
+### Features
+
+* **backup:** open sqlite → pg .picpeak restore as the supported upgrade direction ([#1041](https://github.com/PicPeak/picpeak/issues/1041)) ([#1059](https://github.com/PicPeak/picpeak/issues/1059)) ([980378a](https://github.com/PicPeak/picpeak/commit/980378a17ba873d0e2f3d76048dacb3b8d7a4eb2))
+
+
+### Bug Fixes
+
+* **pdf:** RFC 6266-encode Content-Disposition on quote/invoice PDFs ([#1024](https://github.com/PicPeak/picpeak/issues/1024)) ([#1062](https://github.com/PicPeak/picpeak/issues/1062)) ([376311c](https://github.com/PicPeak/picpeak/commit/376311cb9091ff1726e8b383312f22c607dcc8a0))
+* **storage:** add S3 client timeouts so a dropped connection can't wedge uploads ([#1049](https://github.com/PicPeak/picpeak/issues/1049)) ([#1054](https://github.com/PicPeak/picpeak/issues/1054)) ([88fa3c5](https://github.com/PicPeak/picpeak/commit/88fa3c52973fa122f8d4e7b21ba1ffc89f9f9c2e))
+
+## [3.45.16](https://github.com/PicPeak/picpeak/compare/v3.45.15...v3.45.16) (2026-08-13)
+
+
+### Bug Fixes
+
+* **docker:** default NODE_ENV=production so non-compose deploys don't fall back to SQLite ([#1038](https://github.com/PicPeak/picpeak/issues/1038)) ([#1040](https://github.com/PicPeak/picpeak/issues/1040)) ([9003b34](https://github.com/PicPeak/picpeak/commit/9003b34c8a0396cd28906f089aef33f38a23ffb7))
+* **events:** make event_date/expires_at nullable on SQLite ([#1029](https://github.com/PicPeak/picpeak/issues/1029)) ([#1036](https://github.com/PicPeak/picpeak/issues/1036)) ([fb3d0b0](https://github.com/PicPeak/picpeak/commit/fb3d0b08b2dc34f7e7dab7da754a3522c52a9eb1))
+* **feedback:** persist guest feedback settings, unshadow the guest route ([#1030](https://github.com/PicPeak/picpeak/issues/1030)) ([#1032](https://github.com/PicPeak/picpeak/issues/1032)) ([de459c7](https://github.com/PicPeak/picpeak/commit/de459c701f28532ca53d52773b02de44c9978073))
+* **gallery:** coerce SQLite 0/1 booleans in the guest surface ([#1028](https://github.com/PicPeak/picpeak/issues/1028)) ([#1037](https://github.com/PicPeak/picpeak/issues/1037)) ([8b6cd3c](https://github.com/PicPeak/picpeak/commit/8b6cd3c74f2aeb5d38ebfeee04bbc211d6fa2c0c))
+
+## [3.45.15](https://github.com/PicPeak/picpeak/compare/v3.45.14...v3.45.15) (2026-08-10)
+
+
+### Bug Fixes
+
+* **deps:** bump nanoid and js-yaml out of two HIGH advisories (stable) ([#1014](https://github.com/PicPeak/picpeak/issues/1014)) ([cee0a38](https://github.com/PicPeak/picpeak/commit/cee0a380a6faf2bb0a5c802057ba3140670840d2))
+* **slideshow:** stop "no crop" fit letterboxing a pre-cropped frame (stable) ([#1015](https://github.com/PicPeak/picpeak/issues/1015)) ([#1019](https://github.com/PicPeak/picpeak/issues/1019)) ([2bdb120](https://github.com/PicPeak/picpeak/commit/2bdb1204fe61a9b6cd704b35ccfd39efa15ed118))
+
+## [3.45.14](https://github.com/PicPeak/picpeak/compare/v3.45.13...v3.45.14) (2026-08-04)
+
+
+### Bug Fixes
+
+* **deps:** bump ip-address, brace-expansion and postcss for open CVEs (stable) ([#988](https://github.com/PicPeak/picpeak/issues/988)) ([0fe5792](https://github.com/PicPeak/picpeak/commit/0fe5792a7d30bd948d6430642ca0bec35ddc2ca6))
+* **security:** vet the destination project when linking a deal (stable) ([#992](https://github.com/PicPeak/picpeak/issues/992)) ([bf9bd76](https://github.com/PicPeak/picpeak/commit/bf9bd762783a2a675f0a6fcd965addf0f47cec57))
+
+## [3.45.13](https://github.com/PicPeak/picpeak/compare/v3.45.12...v3.45.13) (2026-08-03)
+
+
+### Bug Fixes
+
+* **auth:** fail closed when the adminAuth roles join errors (stable) ([#975](https://github.com/PicPeak/picpeak/issues/975)) ([cc49f69](https://github.com/PicPeak/picpeak/commit/cc49f6997ac54c3e25d5562721c446b7dac7f074))
+* **projects:** stop the cockpit offering email controls the API rejects (stable) ([#977](https://github.com/PicPeak/picpeak/issues/977)) ([2d0e6ab](https://github.com/PicPeak/picpeak/commit/2d0e6ab2dca84cf74c6c6b5c40ecae5c5cde814c))
+* **security:** backup/restore hardening — public-dir DB dump, restore path allowlist, gunzip bound, manifest keying (stable) ([#962](https://github.com/PicPeak/picpeak/issues/962)) ([3b88036](https://github.com/PicPeak/picpeak/commit/3b88036fda871b3a1ca2e933c39fa96e37950fe6))
+* **security:** bound inbound-mail resources, redact secrets from logs (stable) ([#965](https://github.com/PicPeak/picpeak/issues/965)) ([ccab902](https://github.com/PicPeak/picpeak/commit/ccab9024d4ef2f556169bbca8c6bba4801afe3a0))
+* **security:** enforce event ownership on the v1 API surface (GHSA-9697) (stable) ([#963](https://github.com/PicPeak/picpeak/issues/963)) ([4e99897](https://github.com/PicPeak/picpeak/commit/4e9989731390f9c067b048f4fa56ed3bf8ec472d))
+* **security:** enforce project ownership on project + project-email routes (stable) ([#966](https://github.com/PicPeak/picpeak/issues/966)) ([fecc18c](https://github.com/PicPeak/picpeak/commit/fecc18cbc837507bf30dd7502786de4e067855a5))
+* **security:** escape brand tokens, block tracker redirects, trim logo diagnostic (stable) ([#967](https://github.com/PicPeak/picpeak/issues/967)) ([7f27e67](https://github.com/PicPeak/picpeak/commit/7f27e6771f666a40ec0581dc7702be3a1de8330d))
+* **security:** scope dashboard stats/analytics/activity to the caller's events (stable) ([#964](https://github.com/PicPeak/picpeak/issues/964)) ([11f9f58](https://github.com/PicPeak/picpeak/commit/11f9f584ded5f777a61dc2e1e637d478a61ac377))
+
+## [3.45.12](https://github.com/PicPeak/picpeak/compare/v3.45.11...v3.45.12) (2026-08-02)
+
+
+### Bug Fixes
+
+* **security:** authz/ownership gaps (token binding, auth revocation, feedback/customer ownership, token logging) (stable) ([#951](https://github.com/PicPeak/picpeak/issues/951)) ([5d5db4e](https://github.com/PicPeak/picpeak/commit/5d5db4e766eee23a6678b399cdb9cc449fcea198))
+* **security:** neutralize spreadsheet formulas in all CSV/export cell-writers (CSV injection cluster) ([#949](https://github.com/PicPeak/picpeak/issues/949)) ([e5dccf1](https://github.com/PicPeak/picpeak/commit/e5dccf166419bb571b052990aada14801e16ac79))
+* **security:** redact gallery share tokens from analytics tracking (GHSA-7m6c) (stable) ([#953](https://github.com/PicPeak/picpeak/issues/953)) ([2c7b5df](https://github.com/PicPeak/picpeak/commit/2c7b5dfd020ac1fb2acdb7667998b2f373ce99d9))
+* **security:** unauth share_token leak (HIGH) + restore path-traversal, logo file-read (stable) ([#947](https://github.com/PicPeak/picpeak/issues/947)) ([bfafece](https://github.com/PicPeak/picpeak/commit/bfafecedc755790374565281287b9777ae0f5315))
+
+## [3.45.11](https://github.com/PicPeak/picpeak/compare/v3.45.10...v3.45.11) (2026-08-01)
+
+
+### Bug Fixes
+
+* **security:** block guest access to hidden/client-only photos across bulk + secure routes (stable) ([#940](https://github.com/PicPeak/picpeak/issues/940)) ([34a7b1c](https://github.com/PicPeak/picpeak/commit/34a7b1c0137cf4cba53f17270f619ce9755c4c98))
+* **security:** bump sanitize-html to 2.17.5 (CVE-2026-53606) (stable) ([#938](https://github.com/PicPeak/picpeak/issues/938)) ([7419c68](https://github.com/PicPeak/picpeak/commit/7419c683375d12650c448caa47ffe0444a7e1458))
+* **security:** close authorization/ownership gaps (token scope, mass-assignment, category hero, project docs) (stable) ([#944](https://github.com/PicPeak/picpeak/issues/944)) ([2462ba6](https://github.com/PicPeak/picpeak/commit/2462ba6897c93b3f0834d60cc2e6827a45487062))
+* **security:** resolve DNS before vetting external hostnames (SSRF cluster) (stable) ([#942](https://github.com/PicPeak/picpeak/issues/942)) ([90275f8](https://github.com/PicPeak/picpeak/commit/90275f88e9af523ba3cc254cef2ca6f48a2a4129))
+* **uploads:** prevent cross-photo contamination from filename collisions and non-atomic writes ([#931](https://github.com/PicPeak/picpeak/issues/931)) (stable) ([#934](https://github.com/PicPeak/picpeak/issues/934)) ([fc99e2b](https://github.com/PicPeak/picpeak/commit/fc99e2b233b4a7c81c410f7d557e7dff270437bd))
+
 ## [3.45.10](https://github.com/PicPeak/picpeak/compare/v3.45.9...v3.45.10) (2026-07-30)
 
 

README.md

@@ -111,10 +111,15 @@ docker compose up -d
 On first start with no `ADMIN_PASSWORD` set, PicPeak has **no admin account yet** and greets you with an in-browser setup screen — no credentials in `.env`:
 
 1. Open **http://localhost:3000/admin** — you'll be redirected to `/setup`.
-2. Grab the **one-time setup token** from the backend logs (it's also saved to `data/SETUP_TOKEN`):
+2. Read the **one-time setup token** from the 0600 file the backend writes it to
+   (it is deliberately *not* printed to the logs — that would leave a live
+   bootstrap credential in `docker logs`):
    ```bash
-   docker compose logs backend | grep -i "setup token"
+   docker compose exec backend cat /app/data/SETUP_TOKEN
    ```
+   It is bind-mounted, so `sudo cat data/SETUP_TOKEN` on the host works too. Only
+   if that file could not be written does the backend fall back to logging the
+   token (`docker compose logs backend | grep -i "setup token"`).
 3. Paste the token, set your admin **email + password**, and you're in. The token is single-use, and the setup screen closes permanently once an admin exists.
 
 > Prefer the old behaviour? Set `ADMIN_PASSWORD` in `.env` and PicPeak auto-creates the admin on first boot instead (credentials written to `data/ADMIN_CREDENTIALS.txt`).

SIMPLE_SETUP.md

@@ -170,10 +170,12 @@ If you installed with `picpeak-setup.sh` and gave an `--admin-password`, your ad
 If you started PicPeak **without** setting `ADMIN_PASSWORD` (e.g. a plain `docker compose up`), there's **no admin yet** and you create it in the browser:
 
 1. Open `http://your-server:3000/admin` — you'll land on a setup screen.
-2. Get the **one-time setup token** from the backend logs (also saved to `data/SETUP_TOKEN`):
+2. Read the **one-time setup token** from the 0600 file the backend writes it to
+   (it is not logged — that would leave a live credential in `docker logs`):
    ```bash
-   docker compose logs backend | grep -i "setup token"
+   docker compose exec backend cat /app/data/SETUP_TOKEN
    ```
+   Only if that write fails does the backend log the token instead.
 3. Paste it, set your admin email + password. The token is single-use and the screen closes once an admin exists.
 
 ## 🌐 Access Methods

backend/Dockerfile

@@ -27,6 +27,15 @@ FROM node:22-alpine
 
 WORKDIR /app
 
+# knexfile.js picks its config block by NODE_ENV, and the `development` block
+# defaults to sqlite3. Leaving NODE_ENV unset here meant every deployment that
+# doesn't go through our compose files — Kubernetes, Helm, plain `docker run` —
+# silently ran on SQLite and ignored DB_HOST/DB_USER/DB_PASSWORD, while
+# wait-for-db.sh (shell, reads DB_HOST directly) reported "PostgreSQL is up" in
+# the same log. The compose files still override this, so nothing changes for
+# compose users. See #1038.
+ENV NODE_ENV=production
+
 # Redeclare CACHEBUST — ARGs don't cross stage boundaries, so the builder
 # stage's declaration never reached this stage. Consuming it in the RUN below
 # busts that layer's cache every CI run (CACHEBUST=github.run_number), so the

backend/__tests__/integration/picpeakCrossEngine.test.js

@@ -0,0 +1,197 @@
+'use strict';
+
+/**
+ * Cross-engine .picpeak restore policy (#1041): a SQLite archive restored onto
+ * a PostgreSQL instance — the official small-install → full-stack upgrade
+ * path — now allowed by validateManifest's direction rule instead of the
+ * former CLI-only allowEngineSwitch flag. The coercion engine itself
+ * (typedColumnsFor / epochToIso / coerceForTargetEngine) landed with #1039;
+ * these tests pin the direction policy and the coercion's cross-engine
+ * value-correctness.
+ *
+ * Ungated: validateManifest direction rules and the pure coercion units.
+ * The reverse direction (pg backup onto a sqlite instance) staying blocked is
+ * pinned by picpeakRoundtrip.test.js, which runs on the real sqlite harness.
+ *
+ * Gated on PICPEAK_PG_TEST_URL (same contract as picpeakRestorePg.test.js):
+ * sqlite-shaped NDJSON rows land in real Postgres with correct stored VALUES,
+ * not just row counts, e.g.
+ *   PICPEAK_PG_TEST_URL="postgres://picpeak:pw@127.0.0.1:7102/picpeak_xengine_test" \
+ *     npx jest __tests__/integration/picpeakCrossEngine.test.js
+ */
+const knexLib = require('knex');
+
+describe('validateManifest cross-engine direction (pg target)', () => {
+  let validateManifest;
+
+  beforeAll(() => {
+    jest.resetModules();
+    jest.doMock('../../knexfile', () => ({ client: 'pg' }));
+    // validateManifest wraps its knex_migrations lookup in try/catch — a
+    // throwing stub simply skips the forward-only check, which is not under
+    // test here.
+    jest.doMock('../../src/database/db', () => ({ db: () => { throw new Error('stub'); } }));
+    ({ validateManifest } = require('../../src/services/picpeakImportService'));
+  });
+
+  afterAll(() => {
+    jest.dontMock('../../src/database/db');
+    jest.dontMock('../../knexfile');
+    jest.resetModules();
+  });
+
+  it('allows a sqlite backup onto a pg instance (upgrade direction)', async () => {
+    const blockers = await validateManifest({
+      kind: 'picpeak-backup', format: 1, database: { engine: 'sqlite' }, tables: {},
+    });
+    expect(blockers.filter((b) => /engine/i.test(b))).toHaveLength(0);
+  });
+
+  it('still allows same-engine pg → pg', async () => {
+    const blockers = await validateManifest({
+      kind: 'picpeak-backup', format: 1, database: { engine: 'pg' }, tables: {},
+    });
+    expect(blockers.filter((b) => /engine/i.test(b))).toHaveLength(0);
+  });
+});
+
+describe('epochToIso (landed with #1039)', () => {
+  let epochToIso;
+
+  beforeAll(() => {
+    jest.resetModules();
+    ({ epochToIso } = require('../../src/services/picpeakImportService'));
+  });
+
+  it('converts epoch milliseconds', () => {
+    expect(epochToIso(1723400000000)).toBe('2024-08-11T18:13:20.000Z');
+  });
+
+  it('converts epoch SECONDS to the same instant, not January 1970', () => {
+    expect(epochToIso(1723400000)).toBe('2024-08-11T18:13:20.000Z');
+  });
+
+  it('converts numeric strings', () => {
+    expect(epochToIso('1723400000000')).toBe('2024-08-11T18:13:20.000Z');
+  });
+
+  it('passes non-numeric values through untouched', () => {
+    expect(epochToIso('2026-08-12 10:00:00')).toBe('2026-08-12 10:00:00');
+  });
+});
+
+describe('coerceForTargetEngine on sqlite-shaped rows', () => {
+  let coerceForTargetEngine;
+
+  beforeAll(() => {
+    jest.resetModules();
+    ({ coerceForTargetEngine } = require('../../src/services/picpeakImportService'));
+  });
+
+  const types = { timestamps: ['created_at', 'expires_at'], booleans: ['is_active'] };
+
+  it('coerces 0/1 booleans and epoch timestamps, leaves date strings alone', () => {
+    const [row] = coerceForTargetEngine(
+      [{ id: 1, is_active: 1, created_at: 1723400000000, expires_at: '2026-09-01 12:00:00' }],
+      types
+    );
+    expect(row.is_active).toBe(true);
+    expect(row.created_at).toBe('2024-08-11T18:13:20.000Z');
+    expect(row.expires_at).toBe('2026-09-01 12:00:00'); // pg parses this natively
+  });
+
+  it('coerces falsy variants and passes null/empty through', () => {
+    const [row] = coerceForTargetEngine(
+      [{ is_active: 0, created_at: null, expires_at: '' }],
+      types
+    );
+    expect(row.is_active).toBe(false);
+    expect(row.created_at).toBeNull();
+    expect(row.expires_at).toBe('');
+  });
+});
+
+// ── Real-Postgres integration (gated) ────────────────────────────────────────
+const PG_URL = process.env.PICPEAK_PG_TEST_URL;
+const maybe = PG_URL ? describe : describe.skip;
+
+maybe('sqlite-shaped rows land correctly in real Postgres', () => {
+  let pgDb;
+  let svc;
+
+  beforeAll(async () => {
+    pgDb = knexLib({ client: 'pg', connection: PG_URL });
+    await pgDb.raw('DROP TABLE IF EXISTS xengine_events, xengine_settings CASCADE');
+    await pgDb.schema.createTable('xengine_events', (t) => {
+      t.increments('id');
+      t.string('slug');
+      t.boolean('is_active').defaultTo(true);
+      t.boolean('allow_downloads').defaultTo(true);
+      t.timestamp('created_at');
+      t.timestamp('expires_at');
+    });
+    await pgDb.schema.createTable('xengine_settings', (t) => {
+      t.increments('id');
+      t.string('setting_key').notNullable().unique();
+      t.jsonb('setting_value');
+    });
+
+    jest.resetModules();
+    jest.doMock('../../knexfile', () => ({ client: 'pg' }));
+    jest.doMock('../../src/database/db', () => ({ db: pgDb }));
+    svc = require('../../src/services/picpeakImportService');
+  });
+
+  afterAll(async () => {
+    jest.dontMock('../../src/database/db');
+    jest.dontMock('../../knexfile');
+    if (pgDb) {
+      await pgDb.raw('DROP TABLE IF EXISTS xengine_events, xengine_settings CASCADE');
+      await pgDb.destroy();
+    }
+  });
+
+  it('typedColumnsFor classifies boolean and timestamp columns via columnInfo()', async () => {
+    const types = await svc.typedColumnsFor(pgDb, 'xengine_events');
+    expect(types.booleans.sort()).toEqual(['allow_downloads', 'is_active']);
+    expect(types.timestamps.sort()).toEqual(['created_at', 'expires_at']);
+  });
+
+  it('inserts a sqlite archive row (0/1 booleans, epoch dates, json text) with correct stored values', async () => {
+    // Exactly what a sqlite-created .picpeak carries: integers for booleans,
+    // epoch numbers for #485-shape timestamps (ms here, seconds covered by the
+    // epochToIso unit), a "YYYY-MM-DD HH:MM:SS" string for clean ones, and
+    // json columns as TEXT (the crossEngine path skips serialiseJsonColumns —
+    // the text is already what pg wants).
+    const epoch = 1723400000000;
+    const eventRows = [
+      { id: 1, slug: 'wedding', is_active: 1, allow_downloads: 0, created_at: epoch, expires_at: '2026-09-01 12:00:00' },
+    ];
+    const settingRows = [{ id: 1, setting_key: 'brand', setting_value: '{"name":"PicPeak","dark":true}' }];
+
+    await pgDb.transaction(async (trx) => {
+      const evTypes = await svc.typedColumnsFor(trx, 'xengine_events');
+      await trx.batchInsert('xengine_events', svc.coerceForTargetEngine(eventRows, evTypes), 100);
+      const stTypes = await svc.typedColumnsFor(trx, 'xengine_settings');
+      await trx.batchInsert('xengine_settings', svc.coerceForTargetEngine(settingRows, stTypes), 100);
+    });
+
+    const ev = await pgDb('xengine_events').where({ id: 1 }).first();
+    expect(ev.is_active).toBe(true);          // 1 → true, not backwards (#1028 class)
+    expect(ev.allow_downloads).toBe(false);   // 0 → false
+    expect(new Date(ev.created_at).getTime()).toBe(epoch);
+    expect(new Date(ev.expires_at).toISOString().slice(0, 10)).toBe('2026-09-01');
+
+    const st = await pgDb('xengine_settings').where({ id: 1 }).first();
+    // jsonb parsed back by the driver — value intact, no double encoding.
+    expect(st.setting_value).toEqual({ name: 'PicPeak', dark: true });
+  });
+
+  it('id sequence works after explicit-id insert + resync (next natural insert)', async () => {
+    await svc.resyncSequences(['xengine_events']);
+    const [next] = await pgDb('xengine_events')
+      .insert({ slug: 'fresh', is_active: true })
+      .returning('id');
+    expect(Number(next.id || next)).toBe(2);
+  });
+});

backend/__tests__/integration/slideshowPhotoSource.test.js

@@ -0,0 +1,150 @@
+/**
+ * Slideshow photo source (#1015).
+ *
+ * The bug: with `lightbox_preview_enabled` off (the default), /photos emitted
+ * `preview_url: null`, so the slideshow's `preview_url || hero_url || url`
+ * chain fell through to `hero_url` — a 1920x1080 `fit: 'cover'` centre crop
+ * meant for gallery header banners. With the "Black Bars (No crop)" fit the
+ * show then letterboxed an already-cropped frame: portrait photos lost their
+ * top and bottom and the setting looked broken.
+ *
+ * The contract pinned here: `slideshow_url` points at the aspect-preserved
+ * preview tier and is emitted for image photos REGARDLESS of the lightbox
+ * toggle, so the slideshow never has a reason to reach for `hero_url`.
+ * `preview_url` itself must stay gated — the lightbox opt-in is unchanged.
+ */
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('./helpers/crmDb');
+
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'slideshow-src-test-secret';
+
+const SLUG = 'slideshow-source-event';
+
+describe('Slideshow photo source (#1015)', () => {
+  let db;
+  let cleanup;
+  let app;
+  let eventId;
+  let imagePhotoId;
+  let videoPhotoId;
+
+  const galleryToken = () => jwt.sign(
+    { eventId, eventSlug: SLUG, type: 'gallery' },
+    process.env.JWT_SECRET,
+    { expiresIn: '1h', issuer: 'picpeak-auth' }
+  );
+
+  const setLightboxPreview = async (on) => {
+    await db('app_settings').where({ setting_key: 'lightbox_preview_enabled' }).del();
+    await db('app_settings').insert({
+      setting_key: 'lightbox_preview_enabled',
+      setting_value: JSON.stringify(on),
+      setting_type: 'general',
+      updated_at: new Date().toISOString(),
+    });
+  };
+
+  const fetchPhotos = async () => {
+    const res = await request(app)
+      .get(`/api/gallery/${SLUG}/photos`)
+      .set('Authorization', `Bearer ${galleryToken()}`)
+      .expect(200);
+    return res.body.photos;
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const inserted = await db('events').insert({
+      slug: SLUG,
+      event_type: 'wedding',
+      event_name: 'Slideshow Source Test',
+      event_date: '2026-08-01',
+      host_email: 'host@example.com',
+      admin_email: 'admin@example.com',
+      password_hash: 'x',
+      share_link: `/gallery/${SLUG}/share`,
+      share_token: 'slideshow-source-share',
+      expires_at: new Date(Date.now() + 7 * 24 * 3600 * 1000).toISOString(),
+      is_active: 1,
+      is_archived: 0,
+      is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    eventId = inserted[0]?.id ?? inserted[0];
+
+    const img = await db('photos').insert({
+      event_id: eventId,
+      filename: 'portrait.jpg',
+      path: 'events/slideshow-source/portrait.jpg',
+      type: 'individual',
+      mime_type: 'image/jpeg',
+      uploaded_at: new Date().toISOString(),
+    }).returning('id');
+    imagePhotoId = img[0]?.id ?? img[0];
+
+    const vid = await db('photos').insert({
+      event_id: eventId,
+      filename: 'clip.mp4',
+      path: 'events/slideshow-source/clip.mp4',
+      type: 'individual',
+      media_type: 'video',
+      mime_type: 'video/mp4',
+      uploaded_at: new Date().toISOString(),
+    }).returning('id');
+    videoPhotoId = vid[0]?.id ?? vid[0];
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/gallery', require('../../src/routes/gallery'));
+  }, 120000);
+
+  afterAll(async () => {
+    if (cleanup) await cleanup();
+  });
+
+  it('emits slideshow_url for image photos even when lightbox previews are OFF', async () => {
+    await setLightboxPreview(false);
+    const photos = await fetchPhotos();
+    const image = photos.find((p) => p.id === imagePhotoId);
+
+    expect(image.slideshow_url).toBe(`/api/gallery/${SLUG}/preview/${imagePhotoId}`);
+    // The regression: this is what used to be null, pushing the show to hero.
+    expect(image.preview_url).toBeNull();
+  });
+
+  it('leaves preview_url gated so the lightbox opt-in is unchanged', async () => {
+    await setLightboxPreview(true);
+    const photos = await fetchPhotos();
+    const image = photos.find((p) => p.id === imagePhotoId);
+
+    expect(image.preview_url).toBe(`/api/gallery/${SLUG}/preview/${imagePhotoId}`);
+    expect(image.slideshow_url).toBe(image.preview_url);
+  });
+
+  it('never points the slideshow at the cover-cropped hero tier', async () => {
+    await setLightboxPreview(false);
+    const photos = await fetchPhotos();
+    const image = photos.find((p) => p.id === imagePhotoId);
+
+    // hero_url still ships (the gallery header uses it) — it just must not be
+    // what the slideshow resolves to.
+    expect(image.hero_url).toBe(`/api/gallery/${SLUG}/hero/${imagePhotoId}`);
+    expect(image.slideshow_url).not.toBe(image.hero_url);
+  });
+
+  it('emits slideshow_url: null for videos, which have no preview tier', async () => {
+    await setLightboxPreview(false);
+    const photos = await fetchPhotos();
+    const video = photos.find((p) => p.id === videoPhotoId);
+
+    expect(video.slideshow_url).toBeNull();
+  });
+});

backend/__tests__/middleware/adminAuthRoleFallback.test.js

@@ -0,0 +1,111 @@
+/**
+ * The roles-join fallback in adminAuth fabricates `role_name = 'super_admin'`
+ * to keep existing sessions working across the RBAC upgrade window. The catch
+ * around it used to be unconditional, so ANY transient database failure —
+ * connection reset, deadlock, statement timeout, pool exhaustion — took the
+ * same branch and handed the caller super_admin for the duration of the fault.
+ *
+ * `roleName` is the sole discriminator for every ownership check (ownership.js,
+ * adminProjects, adminUsers, adminApiTokens, projectService, ...), so that
+ * inverted the whole authorization model rather than failing the request.
+ * Issue #968. Same treatment apiTokenAuth already got for the v1 surface.
+ */
+
+const jwt = require('jsonwebtoken');
+
+jest.mock('../../src/utils/tokenRevocation', () => ({ isTokenRevoked: jest.fn().mockResolvedValue(false) }));
+jest.mock('../../src/utils/logger', () => ({ warn: jest.fn(), error: jest.fn(), debug: jest.fn(), info: jest.fn() }));
+
+// The joined query throws whatever the test stages; the role-less fallback
+// query (no .leftJoin) always succeeds, which is what made the original bug
+// reachable — it is the cheaper single-table read.
+// `mock`-prefixed so jest's module-factory hoisting allows the reference.
+let mockJoinError = null;
+const mockAdminRow = { id: 7, username: 'scoped', email: 's@example.com', password_changed_at: null };
+
+jest.mock('../../src/database/db', () => ({
+  db: () => ({
+    _joined: false,
+    leftJoin() { this._joined = true; return this; },
+    where() { return this; },
+    select() { return this; },
+    first() {
+      if (this._joined && mockJoinError) return Promise.reject(mockJoinError);
+      return Promise.resolve({ ...mockAdminRow });
+    },
+  }),
+}));
+
+const { adminAuth } = require('../../src/middleware/auth');
+
+const SECRET = 'test-secret-for-admin-auth-fallback';
+
+function makeReq() {
+  const token = jwt.sign(
+    { id: mockAdminRow.id, type: 'admin' },
+    SECRET,
+    { algorithm: 'HS256', issuer: 'picpeak-auth' },
+  );
+  return { headers: { authorization: `Bearer ${token}` }, ip: '127.0.0.1', connection: {} };
+}
+
+function makeRes() {
+  return {
+    statusCode: null,
+    body: null,
+    status(code) { this.statusCode = code; return this; },
+    json(payload) { this.body = payload; return this; },
+  };
+}
+
+describe('adminAuth roles-join fallback (#968)', () => {
+  const OLD_SECRET = process.env.JWT_SECRET;
+  beforeAll(() => { process.env.JWT_SECRET = SECRET; });
+  afterAll(() => { process.env.JWT_SECRET = OLD_SECRET; });
+  beforeEach(() => { mockJoinError = null; });
+
+  it('grants the upgrade-window fallback only for a genuinely missing roles table', async () => {
+    mockJoinError = new Error('SQLITE_ERROR: no such table: roles');
+    const req = makeReq();
+    const res = makeRes();
+    const next = jest.fn();
+
+    await adminAuth(req, res, next);
+
+    expect(next).toHaveBeenCalled();
+    expect(req.admin.roleName).toBe('super_admin');
+  });
+
+  it.each([
+    ['connection reset', new Error('Connection terminated unexpectedly')],
+    ['deadlock', new Error('deadlock detected')],
+    ['pool exhaustion', new Error('Knex: Timeout acquiring a connection')],
+    ['statement timeout', new Error('canceling statement due to statement timeout')],
+  ])('does NOT fabricate super_admin on a transient failure (%s)', async (_label, err) => {
+    mockJoinError = err;
+    const req = makeReq();
+    const res = makeRes();
+    const next = jest.fn();
+
+    await adminAuth(req, res, next);
+
+    // Fails closed: request rejected, req.admin never populated. The specific
+    // status is 401 (adminAuth's blanket outer catch) — what matters is that
+    // the caller is not elevated and does not reach the route.
+    expect(next).not.toHaveBeenCalled();
+    expect(req.admin).toBeUndefined();
+    expect(res.statusCode).toBe(401);
+  });
+
+  it('does NOT fabricate super_admin when an unrelated table is missing', async () => {
+    mockJoinError = new Error('SQLITE_ERROR: no such table: admin_sessions');
+    const req = makeReq();
+    const res = makeRes();
+    const next = jest.fn();
+
+    await adminAuth(req, res, next);
+
+    expect(next).not.toHaveBeenCalled();
+    expect(req.admin).toBeUndefined();
+  });
+});

backend/__tests__/middleware/apiTokenRoleFallback.test.js

@@ -0,0 +1,72 @@
+/**
+ * The roles-join fallback in apiTokenAuth grants `super_admin` (upgrade-path
+ * parity with adminAuth). It must therefore fire ONLY when the roles schema is
+ * genuinely absent — a catch-all turns any transient database failure into a
+ * privilege escalation that reopens GHSA-9697 for a demoted token owner.
+ */
+
+const { isMissingRolesSchema } = require('../../src/middleware/apiTokenAuth');
+
+describe('apiTokenAuth roles-schema fallback predicate (GHSA-9697)', () => {
+  it('accepts a genuinely missing roles table on both engines', () => {
+    expect(isMissingRolesSchema(new Error('SQLITE_ERROR: no such table: roles'))).toBe(true);
+    expect(isMissingRolesSchema(
+      Object.assign(new Error('relation "roles" does not exist'), { code: '42P01' }),
+    )).toBe(true);
+    expect(isMissingRolesSchema(
+      Object.assign(new Error('column roles.name does not exist'), { code: '42703' }),
+    )).toBe(true);
+  });
+
+  it('rejects transient failures that must not elevate the caller', () => {
+    expect(isMissingRolesSchema(new Error('Connection terminated unexpectedly'))).toBe(false);
+    expect(isMissingRolesSchema(new Error('deadlock detected'))).toBe(false);
+    expect(isMissingRolesSchema(new Error('Knex: Timeout acquiring a connection'))).toBe(false);
+    expect(isMissingRolesSchema(new Error('canceling statement due to statement timeout'))).toBe(false);
+    expect(isMissingRolesSchema(undefined)).toBe(false);
+  });
+
+  it('rejects a missing-table error for an unrelated table', () => {
+    expect(isMissingRolesSchema(new Error('SQLITE_ERROR: no such table: api_tokens'))).toBe(false);
+  });
+
+  // knex prefixes the failing SQL to err.message, and that SQL always names
+  // `roles` on this join — so the message substring proves nothing about the
+  // error, and only an exact driver phrase (or a SQLSTATE) may be trusted.
+  // These are real knex message shapes, captured from the actual query.
+  describe('with knex\'s SQL prefix on the message (#968)', () => {
+    const withSql = (driverMessage) => new Error(
+      'select `roles`.`name` as `role_name` from `admin_users` '
+      + 'left join `roles` on `roles`.`id` = `admin_users`.`role_id` '
+      + `where \`admin_users\`.\`id\` = 1 limit 1 - ${driverMessage}`,
+    );
+
+    it('accepts both legitimate upgrade-window states', () => {
+      // pre-054: the roles table does not exist yet
+      expect(isMissingRolesSchema(
+        Object.assign(withSql('SQLITE_ERROR: no such table: roles'), { code: 'SQLITE_ERROR' }),
+      )).toBe(true);
+      // post-054, pre-057: roles exists, admin_users.role_id not added yet
+      expect(isMissingRolesSchema(
+        Object.assign(withSql('SQLITE_ERROR: no such column: admin_users.role_id'), { code: 'SQLITE_ERROR' }),
+      )).toBe(true);
+    });
+
+    it('rejects an unrelated "does not exist" fault despite the SQL naming roles', () => {
+      // pgbouncer transaction pooling loses a named prepared statement
+      // (SQLSTATE 26000). Transient — the fallback query would succeed on a
+      // fresh connection, so accepting this would fabricate super_admin.
+      expect(isMissingRolesSchema(
+        Object.assign(withSql('prepared statement "S_1" does not exist'), { code: '26000' }),
+      )).toBe(false);
+      // The DB role/user, not the roles table.
+      expect(isMissingRolesSchema(
+        Object.assign(withSql('role "picpeak" does not exist'), { code: '28000' }),
+      )).toBe(false);
+      expect(isMissingRolesSchema(
+        Object.assign(withSql('database "picpeak" does not exist'), { code: '3D000' }),
+      )).toBe(false);
+      expect(isMissingRolesSchema(withSql('Connection terminated unexpectedly'))).toBe(false);
+    });
+  });
+});

backend/__tests__/migrations/167_projects_created_by.test.js

@@ -0,0 +1,35 @@
+/**
+ * Migration 167 (projects.created_by) — idempotent on re-run, reversible,
+ * and backfills the owner from a project's single linked event (GHSA-wrg5).
+ */
+const path=require('path'), fs=require('fs'), os=require('os');
+process.env.NODE_ENV='test';
+process.env.TEST_DATABASE_PATH=path.join(fs.mkdtempSync(path.join(os.tmpdir(),'picpeak-mig167-')),'db.sqlite');
+process.env.JWT_SECRET='mig';
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+const mig = require('../../migrations/core/167_add_projects_created_by');
+describe('migration 167', () => {
+  let db, cleanup;
+  beforeAll(async()=>{ ({db,cleanup}=await bootCrmDb()); await seedMinimal(db); },120000);
+  afterAll(async()=>{ if(cleanup) await cleanup(); });
+  it('is idempotent on re-run and reversible', async () => {
+    await mig.up(db);            // already applied by boot; must no-op
+    await mig.up(db);            // and again
+    expect(await db.schema.hasColumn('projects','created_by')).toBe(true);
+    await mig.down(db);
+    expect(await db.schema.hasColumn('projects','created_by')).toBe(false);
+    await mig.up(db);            // re-apply cleanly
+    expect(await db.schema.hasColumn('projects','created_by')).toBe(true);
+  });
+  it('backfills created_by from a single linked event owner', async () => {
+    const p = await db('projects').insert({name:'bf',status:'active',created_at:new Date(),updated_at:new Date()}).returning('id');
+    const pid = p[0]?.id ?? p[0];
+    await db('events').insert({slug:'bf-ev',event_type:'wedding',event_name:'bf',event_date:'2026-08-01',
+      host_email:'h@e.com',admin_email:'a@e.com',password_hash:'x',share_token:'t1',share_link:'/g/bf-ev/t1',
+      created_by: 4242, project_id: pid, expires_at:new Date(Date.now()+864e5).toISOString(),
+      is_active:1,is_archived:0,is_draft:0,created_at:new Date().toISOString()});
+    await mig.up(db);
+    const row = await db('projects').where({id:pid}).first();
+    expect(row.created_by).toBe(4242);
+  });
+});

backend/__tests__/migrations/168_fix_expense_activity_event_id.test.js

@@ -0,0 +1,83 @@
+/**
+ * GHSA-jhcf round 3: scoping the activity feed does nothing about the rows
+ * already on disk. expenseService used to pass adminId into logActivity's
+ * `eventId` slot, so upgraded instances carry accounting rows whose event_id
+ * is an ADMIN id — and the scope predicate happily matches those against a
+ * same-numbered event the caller owns.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-mig168-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'mig168-test-secret';
+
+const { bootCrmDb } = require('../integration/helpers/crmDb');
+const migration = require('../../migrations/core/168_fix_expense_activity_event_id');
+
+describe('migration 168 — legacy accounting activity rows (GHSA-jhcf)', () => {
+  let db; let cleanup;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('re-attributes the admin id and clears event_id, leaving real rows alone', async () => {
+    await db('activity_logs').insert([
+      // Legacy shape: event_id is really admin #7, no actor recorded.
+      {
+        activity_type: 'expense_created',
+        actor_type: 'system',
+        actor_id: null,
+        event_id: 7,
+        metadata: JSON.stringify({ expenseId: 1 }),
+        created_at: new Date().toISOString(),
+      },
+      {
+        activity_type: 'incoming_invoice_captured',
+        actor_type: 'system',
+        actor_id: null,
+        event_id: 9,
+        metadata: JSON.stringify({ inboundDocumentId: 2 }),
+        created_at: new Date().toISOString(),
+      },
+      // A genuine event-scoped row from another subsystem must survive intact.
+      {
+        activity_type: 'photo_uploaded',
+        actor_type: 'admin',
+        actor_id: 3,
+        event_id: 7,
+        metadata: JSON.stringify({}),
+        created_at: new Date().toISOString(),
+      },
+    ]);
+
+    await migration.up(db);
+
+    const expense = await db('activity_logs').where({ activity_type: 'expense_created' }).first();
+    expect(expense.event_id == null).toBe(true);
+    expect(Number(expense.actor_id)).toBe(7);
+    expect(expense.actor_type).toBe('admin');
+
+    const captured = await db('activity_logs').where({ activity_type: 'incoming_invoice_captured' }).first();
+    expect(captured.event_id == null).toBe(true);
+    expect(Number(captured.actor_id)).toBe(9);
+
+    const photo = await db('activity_logs').where({ activity_type: 'photo_uploaded' }).first();
+    expect(Number(photo.event_id)).toBe(7);
+    expect(Number(photo.actor_id)).toBe(3);
+  });
+
+  it('is idempotent on re-run', async () => {
+    await expect(migration.up(db)).resolves.toBeUndefined();
+    const expense = await db('activity_logs').where({ activity_type: 'expense_created' }).first();
+    expect(Number(expense.actor_id)).toBe(7);
+    expect(expense.event_id == null).toBe(true);
+  });
+});

backend/__tests__/routes/adminThumbnails.previewColumns.test.js

@@ -0,0 +1,42 @@
+/**
+ * Source-inspection contract test for #1078.
+ *
+ * POST /api/admin/thumbnails/regenerate-previews hands its selected rows to
+ * ensurePreviewImage, which branches on `source_origin` (and then reads
+ * `external_relpath` / `filename`) to reach an external/reference photo on its
+ * media mount. When the select list omitted those columns, every external row
+ * looked managed, resolvePhotoStorageKey returned null, and the endpoint
+ * reported success while silently generating nothing for reference galleries.
+ */
+const fs = require('fs');
+const path = require('path');
+
+describe('regenerate-previews selects the columns ensurePreviewImage branches on (#1078)', () => {
+  const src = fs.readFileSync(
+    path.join(__dirname, '..', '..', 'src', 'routes', 'adminThumbnails.js'),
+    'utf8',
+  );
+
+  // The select feeding the regenerate-previews handler, from the route
+  // declaration to the end of that statement.
+  const selectStatement = (() => {
+    const routeIdx = src.indexOf('/regenerate-previews');
+    expect(routeIdx).toBeGreaterThan(-1);
+    const selectIdx = src.indexOf('.select(', routeIdx);
+    expect(selectIdx).toBeGreaterThan(-1);
+    return src.slice(selectIdx, src.indexOf(';', selectIdx));
+  })();
+
+  it.each(['source_origin', 'external_relpath', 'filename'])(
+    'selects %s',
+    (column) => {
+      expect(selectStatement).toContain(`'${column}'`);
+    }
+  );
+
+  it('still selects the columns the managed path needs', () => {
+    for (const column of ['id', 'event_id', 'path', 'media_type', 'mime_type', 'preview_path']) {
+      expect(selectStatement).toContain(`'${column}'`);
+    }
+  });
+});

backend/__tests__/routes/authzPermissionGaps.test.js

@@ -0,0 +1,211 @@
+/**
+ * Authorization / ownership gaps (GHSA permission cluster):
+ *  - jm7j: API-token list must scope to the caller (non-super sees only own)
+ *  - gprq: API-token revoke must be owner-or-super_admin
+ *  - 3rqx: event update must not mass-assign identity/secret columns
+ *  - j2f4: category hero must belong to that category
+ */
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-authz-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'authz-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-authz-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const bcrypt = require('bcrypt');
+const {
+  bootCrmDb, seedMinimal, assignAdminRole, mintAdminToken,
+} = require('../integration/helpers/crmDb');
+
+describe('authorization / ownership gaps', () => {
+  let db; let cleanup; let app;
+  let superId; let superTok; let adminId; let adminTok;
+
+  const grantPermissionToRole = async (roleName, permName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const perm = await db('permissions').where({ name: permName }).first();
+    const exists = await db('role_permissions')
+      .where({ role_id: role.id, permission_id: perm.id }).first();
+    if (!exists) {
+      await db('role_permissions').insert({ role_id: role.id, permission_id: perm.id });
+    }
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    ({ adminId: superId } = await seedMinimal(db));
+    await assignAdminRole(db, superId, 'super_admin');
+    superTok = mintAdminToken(superId);
+
+    const pass = await bcrypt.hash('x', 4);
+    const ins = await db('admin_users').insert({
+      username: 'plain-admin', email: 'plain@example.com',
+      password_hash: pass, must_change_password: false, created_at: new Date(),
+    }).returning('id');
+    adminId = ins[0]?.id ?? ins[0];
+    await assignAdminRole(db, adminId, 'admin');
+    // Grant settings.edit to the admin role BEFORE any request populates the
+    // 60s permission cache, so the revoke test exercises the ownership check
+    // (404) rather than the missing-permission gate (403). This models a
+    // custom role that carries settings.edit — the scenario GHSA-gprq needs.
+    await grantPermissionToRole('admin', 'settings.edit');
+    adminTok = mintAdminToken(adminId);
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/admin/api-tokens', require('../../src/routes/adminApiTokens'));
+    app.use('/api/admin/events', require('../../src/routes/adminEvents'));
+    app.use('/api/admin/categories', require('../../src/routes/adminCategories'));
+    // eslint-disable-next-line no-unused-vars
+    app.use((err, req, res, next) => {
+      res.status(err.statusCode || err.status || 500).json({ error: err.message, code: err.code });
+    });
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  const auth = (req, tok) => req.set('Authorization', `Bearer ${tok}`);
+
+  describe('API tokens (jm7j / gprq)', () => {
+    let superTokenId;
+
+    beforeAll(async () => {
+      const res = await auth(request(app).post('/api/admin/api-tokens'), superTok)
+        .send({ name: 'super-token', scopes: ['read'] });
+      expect(res.status).toBe(201);
+      superTokenId = res.body.id;
+    });
+
+    it('non-super admin does not see another admin\'s tokens in the list', async () => {
+      const res = await auth(request(app).get('/api/admin/api-tokens'), adminTok);
+      expect(res.status).toBe(200);
+      expect(res.body.find((t) => t.id === superTokenId)).toBeUndefined();
+    });
+
+    it('super_admin sees all tokens', async () => {
+      const res = await auth(request(app).get('/api/admin/api-tokens'), superTok);
+      expect(res.status).toBe(200);
+      expect(res.body.find((t) => t.id === superTokenId)).toBeDefined();
+    });
+
+    it('a non-owner (with settings.edit) cannot revoke another admin\'s token', async () => {
+      const res = await auth(request(app).delete(`/api/admin/api-tokens/${superTokenId}`), adminTok);
+      expect(res.status).toBe(404);
+      const row = await db('api_tokens').where({ id: superTokenId }).first();
+      expect(row.revoked_at).toBeFalsy();
+    });
+
+    it('the owner can revoke their own token', async () => {
+      const res = await auth(request(app).delete(`/api/admin/api-tokens/${superTokenId}`), superTok);
+      expect(res.status).toBe(200);
+    });
+  });
+
+  describe('event update mass-assignment (3rqx)', () => {
+    it('ignores identity/secret columns in the request body', async () => {
+      const seedShareToken = 'orig-share-token';
+      const ins = await db('events').insert({
+        slug: 'authz-mass-assign', event_type: 'wedding', event_name: 'Before',
+        event_date: '2026-08-01', host_email: 'h@example.com', admin_email: 'a@example.com',
+        password_hash: 'orig-hash', share_link: '/gallery/authz/share', share_token: seedShareToken, expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+        is_active: 1, is_archived: 0, is_draft: 0, created_by: superId,
+        created_at: new Date().toISOString(),
+      }).returning('id');
+      const eventId = ins[0]?.id ?? ins[0];
+
+      const res = await auth(request(app).put(`/api/admin/events/${eventId}`), superTok).send({
+        event_name: 'After',
+        created_by: 99999,
+        slug: 'hijacked-slug',
+        share_token: 'hijacked-token',
+        password_hash: 'hijacked-hash',
+        is_archived: 1,
+        archive_path: '/hijacked/archive/path',
+        hero_logo_path: '/etc/passwd',
+        is_draft: 1,
+        project_id: 99999,
+        // Case-variant keys — SQLite matches columns case-insensitively.
+        Password_Hash: 'case-hijack-hash',
+        Created_By: 88888,
+      });
+      expect(res.status).toBe(200);
+
+      const row = await db('events').where({ id: eventId }).first();
+      expect(row.event_name).toBe('After');        // legit field applied
+      expect(row.created_by).toBe(superId);         // ownership untouched (+ case-variant)
+      expect(row.slug).toBe('authz-mass-assign');   // routing identity untouched
+      expect(row.share_token).toBe(seedShareToken); // secret untouched
+      expect(row.password_hash).toBe('orig-hash');  // secret untouched (+ case-variant)
+      expect(row.is_archived).toBeFalsy();          // archive lifecycle untouched
+      expect(row.archive_path).toBeFalsy();         // forged archive path rejected
+      expect(row.hero_logo_path).toBeFalsy();       // fs.unlink primitive blocked
+      expect(row.is_draft).toBeFalsy();             // publish workflow not bypassed
+      expect(row.project_id).toBeFalsy();           // server-managed relationship untouched
+    });
+
+    it('returns 200 (no-op) when the body contains only protected fields', async () => {
+      const ins = await db('events').insert({
+        slug: 'authz-empty-update', event_type: 'wedding', event_name: 'Keep',
+        event_date: '2026-08-01', host_email: 'h@example.com', admin_email: 'a@example.com',
+        password_hash: 'x', share_link: '/gallery/authz-empty/share', share_token: 'authz-empty-share',
+        expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+        is_active: 1, is_archived: 0, is_draft: 0, created_by: superId,
+        created_at: new Date().toISOString(),
+      }).returning('id');
+      const id = ins[0]?.id ?? ins[0];
+      // Body reduces to {} after the denylist — must not 500 (Knex rejects
+      // .update({})).
+      const res = await auth(request(app).put(`/api/admin/events/${id}`), superTok)
+        .send({ created_by: 1, slug: 'x', is_archived: 1 });
+      expect(res.status).toBe(200);
+      const row = await db('events').where({ id }).first();
+      expect(row.event_name).toBe('Keep');
+    });
+  });
+
+  describe('category hero cross-category (j2f4)', () => {
+    it('rejects a hero photo that is not in the category', async () => {
+      const evIns = await db('events').insert({
+        slug: 'authz-cat', event_type: 'wedding', event_name: 'Cat Event',
+        event_date: '2026-08-01', host_email: 'h@example.com', admin_email: 'a@example.com',
+        password_hash: 'x', share_link: '/gallery/authz-cat/share', share_token: 'authz-cat-share', expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+        is_active: 1, is_archived: 0, is_draft: 0, created_by: superId,
+        created_at: new Date().toISOString(),
+      }).returning('id');
+      const evId = evIns[0]?.id ?? evIns[0];
+
+      const mkCat = async (name) => {
+        const c = await db('photo_categories').insert({
+          event_id: evId, name, slug: name.toLowerCase(), created_at: new Date().toISOString(),
+        }).returning('id');
+        return c[0]?.id ?? c[0];
+      };
+      const cat1 = await mkCat('Cat1');
+      const cat2 = await mkCat('Cat2');
+
+      const pIns = await db('photos').insert({
+        event_id: evId, filename: 'p.jpg', path: 'authz-cat/p.jpg', type: 'individual',
+        category_id: cat1, uploaded_at: new Date().toISOString(),
+      }).returning('id');
+      const photoInCat1 = pIns[0]?.id ?? pIns[0];
+
+      // Pointing cat2's hero at a photo that lives in cat1 must be refused.
+      const bad = await auth(request(app).put(`/api/admin/categories/${cat2}/hero`), superTok)
+        .send({ hero_photo_id: photoInCat1 });
+      expect(bad.status).toBe(404);
+
+      // The photo's own category accepts it.
+      const ok = await auth(request(app).put(`/api/admin/categories/${cat1}/hero`), superTok)
+        .send({ hero_photo_id: photoInCat1 });
+      expect(ok.status).toBe(200);
+    });
+  });
+});

backend/__tests__/routes/dashboardScope.test.js

@@ -0,0 +1,196 @@
+/**
+ * Dashboard endpoints must not leak other admins' data to event-scoped
+ * editors — GHSA-c2jj (/stats), GHSA-gqx7 (/analytics), GHSA-jhcf (/activity).
+ *
+ * All three are gated only by `analytics.view`, which the `editor` role holds.
+ * But the events LIST restricts editors to their own rows
+ * (adminEvents/crud.js: roleName === 'editor' → created_by = admin.id), so an
+ * editor saw instance-wide totals — and, via /analytics topGalleries, other
+ * admins' gallery names and SLUGS (the public gallery URL component) — for
+ * events invisible to them everywhere else.
+ *
+ * Scoping deliberately keys on `editor` to mirror the events list exactly, so
+ * the `admin` role's dashboard is unchanged.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-dashscope-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'dashscope-test-secret';
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('dashboard scoping (GHSA-c2jj / gqx7 / jhcf)', () => {
+  let db; let cleanup; let app;
+  let editorToken; let superToken;
+  let ownEventId; let foreignEventId;
+
+  const mkAdmin = async (username, roleName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const r = await db('admin_users').insert({
+      username,
+      email: `${username}@example.com`,
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id,
+      is_active: 1,
+      created_at: new Date(),
+      updated_at: new Date(),
+    }).returning('id');
+    const id = r[0]?.id ?? r[0];
+    const token = jwt.sign(
+      { id, username, type: 'admin', role: roleName, loginTime: Date.now() },
+      process.env.JWT_SECRET,
+      { expiresIn: '1h', issuer: 'picpeak-auth' },
+    );
+    return { id, token };
+  };
+
+  const mkEvent = async (slug, createdBy) => {
+    const r = await db('events').insert({
+      slug,
+      event_type: 'wedding',
+      event_name: `${slug}-name`,
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_token: `tok-${slug}`,
+      share_link: `/gallery/${slug}/tok-${slug}`,
+      created_by: createdBy,
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const editor = await mkAdmin('scoped-editor', 'editor');
+    const sup = await mkAdmin('root-admin', 'super_admin');
+    editorToken = editor.token;
+    superToken = sup.token;
+
+    ownEventId = await mkEvent('own-gallery', editor.id);
+    foreignEventId = await mkEvent('foreign-gallery', sup.id);
+
+    // One photo + one view per event so the aggregates are non-zero.
+    for (const [eventId, name] of [[ownEventId, 'own'], [foreignEventId, 'foreign']]) {
+      await db('photos').insert({
+        event_id: eventId,
+        filename: `${name}.jpg`,
+        path: `events/active/${name}.jpg`,
+        type: 'individual',
+        size_bytes: 1000,
+        uploaded_at: new Date().toISOString(),
+      });
+      await db('access_logs').insert({
+        event_id: eventId,
+        action: 'view',
+        ip_address: `10.0.0.${eventId}`,
+        user_agent: 'Mozilla/5.0',
+        timestamp: new Date().toISOString(),
+      });
+      await db('activity_logs').insert({
+        activity_type: 'photo_viewed',
+        actor_type: 'admin',
+        actor_name: `${name}-actor`,
+        event_id: eventId,
+        created_at: new Date().toISOString(),
+      });
+    }
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/admin/dashboard', require('../../src/routes/adminDashboard'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('/stats counts only the editor\'s own events and photos', async () => {
+    const res = await request(app)
+      .get('/api/admin/dashboard/stats')
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect(res.status).toBe(200);
+    expect(Number(res.body.totalEvents)).toBe(1);
+    expect(Number(res.body.totalPhotos)).toBe(1);
+    expect(Number(res.body.storageUsed)).toBe(1000);
+  });
+
+  it('/analytics does not expose a foreign gallery name or slug', async () => {
+    const res = await request(app)
+      .get('/api/admin/dashboard/analytics?days=7')
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect(res.status).toBe(200);
+    const body = JSON.stringify(res.body);
+    expect(body).not.toContain('foreign-gallery');
+    expect(body).not.toContain('foreign-gallery-name');
+    expect(res.body.topGalleries.map((g) => g.slug)).toEqual(['own-gallery']);
+  });
+
+  it('/activity does not surface a foreign event\'s entries', async () => {
+    const res = await request(app)
+      .get('/api/admin/dashboard/activity')
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect(res.status).toBe(200);
+    const actors = res.body.map((a) => a.actorName);
+    expect(actors).toContain('own-actor');
+    expect(actors).not.toContain('foreign-actor');
+  });
+
+  it('leaves super_admin unscoped across all three', async () => {
+    const stats = await request(app)
+      .get('/api/admin/dashboard/stats')
+      .set('Authorization', `Bearer ${superToken}`);
+    expect(Number(stats.body.totalEvents)).toBe(2);
+
+    const analytics = await request(app)
+      .get('/api/admin/dashboard/analytics?days=7')
+      .set('Authorization', `Bearer ${superToken}`);
+    expect(analytics.body.topGalleries.map((g) => g.slug).sort())
+      .toEqual(['foreign-gallery', 'own-gallery']);
+
+    const activity = await request(app)
+      .get('/api/admin/dashboard/activity')
+      .set('Authorization', `Bearer ${superToken}`);
+    expect(activity.body.map((a) => a.actorName)).toContain('foreign-actor');
+  });
+});
+
+/**
+ * Codex round 2: the /activity filter trusts `activity_logs.event_id`, but
+ * expenseService was passing `adminId` into logActivity's third positional
+ * parameter — which is `eventId`. Admin and event id sequences overlap, so a
+ * foreign admin's expense metadata could surface under an editor's event.
+ * Those writers now pass the actor instead, leaving event_id NULL.
+ */
+describe('activity writers do not put admin ids in event_id (GHSA-jhcf)', () => {
+  it('expenseService passes the actor, not adminId, as the event id', () => {
+    const fs2 = require('fs');
+    const src = fs2.readFileSync(
+      require('path').join(__dirname, '../../src/services/expenseService.js'), 'utf8',
+    );
+    // No logActivity call may end with a bare `, adminId)` — that slot is eventId.
+    const offenders = src.split('\n').filter(
+      (l) => l.includes('logActivity(') && /,\s*adminId\s*\)/.test(l),
+    );
+    expect(offenders).toEqual([]);
+    // And the actor form must actually be in use.
+    expect(src).toContain("{ type: 'admin', id: adminId }");
+  });
+});

backend/__tests__/routes/databaseBackupDestination.test.js

@@ -0,0 +1,120 @@
+/**
+ * Manual database backup must not honour a caller-supplied destination
+ * (GHSA-jw8m-43r2-jqrm).
+ *
+ * POST /api/admin/database-backup/backup forwarded req.body straight into
+ * databaseBackupService.backup(), which merges options over its config:
+ *   const { destinationPath = '/backup/database', ... } = { ...config, ...options }
+ * `destinationPath` is not a persistable setting (the /config allowlist only
+ * accepts `database_backup_*` keys), so the request body was its ONLY source.
+ *
+ * The `admin` role holds backup.create but neither settings.edit nor
+ * backup.restore — so it could aim a full DB dump (bcrypt hashes, gallery
+ * password hashes, encrypted SMTP creds) at the PUBLIC /uploads static mount
+ * (server.js mounts it with no auth middleware) and fetch it unauthenticated.
+ *
+ * Pins that destinationPath from the body is ignored, while the legitimate
+ * knobs still pass through.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-dbbackup-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'dbbackup-test-secret';
+
+// Capture what the route hands the service; never run a real backup.
+const mockBackup = jest.fn(async () => ({ success: true }));
+jest.mock('../../src/services/databaseBackup', () => ({
+  databaseBackupService: {
+    get isRunning() { return false; },
+    backup: (...args) => mockBackup(...args),
+  },
+}));
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('manual database backup destination (GHSA-jw8m)', () => {
+  let db; let cleanup; let app; let adminToken;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const role = await db('roles').where({ name: 'admin' }).first();
+    const r = await db('admin_users').insert({
+      username: 'limited-admin',
+      email: 'limited-admin@example.com',
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id,
+      is_active: 1,
+      created_at: new Date(),
+      updated_at: new Date(),
+    }).returning('id');
+    const id = r[0]?.id ?? r[0];
+    adminToken = jwt.sign(
+      { id, username: 'limited-admin', type: 'admin', role: 'admin', loginTime: Date.now() },
+      process.env.JWT_SECRET,
+      { expiresIn: '1h', issuer: 'picpeak-auth' },
+    );
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/admin/database-backup', require('../../src/routes/adminDatabaseBackup'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  beforeEach(() => mockBackup.mockClear());
+
+  it('ignores a caller-supplied destinationPath', async () => {
+    const res = await request(app)
+      .post('/api/admin/database-backup/backup')
+      .set('Authorization', `Bearer ${adminToken}`)
+      .send({ destinationPath: '/app/storage/uploads' });
+
+    expect(res.status).toBe(200);
+    // Give the fire-and-forget call a tick to land.
+    await new Promise((resolve) => setImmediate(resolve));
+    expect(mockBackup).toHaveBeenCalled();
+    const opts = mockBackup.mock.calls[0][0];
+    expect(opts).not.toHaveProperty('destinationPath');
+    expect(JSON.stringify(opts)).not.toContain('uploads');
+  });
+
+  it('still forwards the legitimate backup knobs', async () => {
+    const res = await request(app)
+      .post('/api/admin/database-backup/backup')
+      .set('Authorization', `Bearer ${adminToken}`)
+      .send({ compress: false, validateIntegrity: false, destinationPath: '/tmp/evil' });
+
+    expect(res.status).toBe(200);
+    await new Promise((resolve) => setImmediate(resolve));
+    const opts = mockBackup.mock.calls[0][0];
+    expect(opts.compress).toBe(false);
+    expect(opts.validateIntegrity).toBe(false);
+    expect(opts).not.toHaveProperty('destinationPath');
+  });
+
+  it('omits absent knobs entirely so service/config defaults still apply', async () => {
+    const res = await request(app)
+      .post('/api/admin/database-backup/backup')
+      .set('Authorization', `Bearer ${adminToken}`)
+      .send({});
+
+    expect(res.status).toBe(200);
+    await new Promise((resolve) => setImmediate(resolve));
+    // An explicit `{compress: undefined}` would override config on spread —
+    // absent keys must simply not be present.
+    expect(mockBackup.mock.calls[0][0]).toEqual({});
+  });
+});

backend/__tests__/routes/feedbackOwnership.test.js

@@ -0,0 +1,101 @@
+/**
+ * GHSA-2qc2 / GHSA-32h4 / GHSA-3335 — feedback moderation, deletion, and the
+ * pending-moderation list are by-feedback-id (or global) and lacked ownership
+ * scoping, so a restricted editor could act on / enumerate feedback for events
+ * it does not own. super_admin keeps global access.
+ */
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-fbown-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'fbown-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-fbown-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const bcrypt = require('bcrypt');
+const { bootCrmDb, seedMinimal, assignAdminRole, mintAdminToken } = require('../integration/helpers/crmDb');
+
+describe('feedback ownership scoping', () => {
+  let db; let cleanup; let app;
+  let superTok; let editorTok; let editorId;
+  let foreignFeedbackId;
+
+  const auth = (req, tok) => req.set('Authorization', `Bearer ${tok}`);
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    const { adminId: superId } = await seedMinimal(db);
+    await assignAdminRole(db, superId, 'super_admin');
+    superTok = mintAdminToken(superId);
+
+    const ins = await db('admin_users').insert({
+      username: 'editor', email: 'editor@example.com',
+      password_hash: await bcrypt.hash('x', 4), must_change_password: false, created_at: new Date(),
+    }).returning('id');
+    editorId = ins[0]?.id ?? ins[0];
+    await assignAdminRole(db, editorId, 'editor');
+    editorTok = mintAdminToken(editorId);
+
+    // Event owned by super_admin (NOT the editor).
+    const ev = await db('events').insert({
+      slug: 'fbown-foreign', event_type: 'wedding', event_name: 'Foreign',
+      event_date: '2026-08-01', host_email: 'h@e.com', admin_email: 'a@e.com',
+      password_hash: 'x', share_link: '/g/fbown/s', share_token: 'fbown-share',
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0, created_by: superId,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    const eventId = ev[0]?.id ?? ev[0];
+    const ph = await db('photos').insert({
+      event_id: eventId, filename: 'p.jpg', path: 'fbown-foreign/p.jpg', type: 'individual',
+      uploaded_at: new Date().toISOString(),
+    }).returning('id');
+    const photoId = ph[0]?.id ?? ph[0];
+    const fb = await db('photo_feedback').insert({
+      photo_id: photoId, event_id: eventId, feedback_type: 'comment',
+      comment_text: 'hi', is_approved: 0, is_hidden: 0, created_at: new Date().toISOString(),
+    }).returning('id');
+    foreignFeedbackId = fb[0]?.id ?? fb[0];
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/admin/feedback', require('../../src/routes/adminFeedback'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('editor cannot moderate feedback on an event it does not own (404)', async () => {
+    const res = await auth(request(app).put(`/api/admin/feedback/feedback/${foreignFeedbackId}/approve`), editorTok);
+    expect(res.status).toBe(404);
+    const row = await db('photo_feedback').where({ id: foreignFeedbackId }).first();
+    expect([false, 0]).toContain(row.is_approved); // untouched
+  });
+
+  it('editor cannot delete foreign feedback, row survives', async () => {
+    const res = await auth(request(app).delete(`/api/admin/feedback/feedback/${foreignFeedbackId}`), editorTok);
+    // Denied either at the events.delete permission layer (editor lacks it →
+    // 403) or the ownership layer (404) — both must leave the row intact.
+    expect([403, 404]).toContain(res.status);
+    expect(await db('photo_feedback').where({ id: foreignFeedbackId }).first()).toBeDefined();
+  });
+
+  it('editor sees no foreign feedback in pending-moderation', async () => {
+    const res = await auth(request(app).get('/api/admin/feedback/feedback/pending-moderation'), editorTok);
+    expect(res.status).toBe(200);
+    expect(res.body.find((f) => f.id === foreignFeedbackId)).toBeUndefined();
+  });
+
+  it('super_admin CAN moderate and see it', async () => {
+    const pending = await auth(request(app).get('/api/admin/feedback/feedback/pending-moderation'), superTok);
+    expect(pending.body.find((f) => f.id === foreignFeedbackId)).toBeDefined();
+    const res = await auth(request(app).put(`/api/admin/feedback/feedback/${foreignFeedbackId}/approve`), superTok);
+    expect(res.status).toBe(200);
+  });
+});

backend/__tests__/routes/galleryResolveShareToken.test.js

@@ -0,0 +1,87 @@
+/**
+ * GHSA-rh8r-7x3h-36rv — the unauthenticated GET /api/gallery/resolve/:identifier
+ * must NOT return a gallery's secret share_token (nor the share links that
+ * embed it) for a bare *slug* lookup. Slugs appear in gallery URLs and are
+ * guessable; handing back the secret turns a known slug into share-link
+ * access to a no-password gallery. The token is only returned when the caller
+ * resolved via the token / full share link (i.e. already holds it).
+ */
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-resolve-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'resolve-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-resolve-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+const SLUG = 'resolve-test-event';
+const SHARE_TOKEN = 'a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6';
+
+describe('GET /api/gallery/resolve/:identifier (GHSA-rh8r)', () => {
+  let db; let cleanup; let app;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+    await db('events').insert({
+      slug: SLUG,
+      event_type: 'wedding',
+      event_name: 'Resolve Test',
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_link: `/gallery/${SLUG}/${SHARE_TOKEN}`,
+      share_token: SHARE_TOKEN,
+      require_password: 0, // no-password → the token IS the access credential
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    });
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/gallery', require('../../src/routes/gallery'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('does NOT leak the share_token (or share links) for a bare slug lookup', async () => {
+    const res = await request(app).get(`/api/gallery/resolve/${SLUG}`);
+    expect(res.status).toBe(200);
+    expect(res.body.slug).toBe(SLUG);
+    expect(res.body.matchType).toBe('slug');
+    // The secret must be absent — and must not sneak out via the share links.
+    expect(res.body.token).toBeUndefined();
+    expect(res.body.share_link).toBeUndefined();
+    expect(res.body.share_url).toBeUndefined();
+    expect(JSON.stringify(res.body)).not.toContain(SHARE_TOKEN);
+  });
+
+  it('DOES return the token when the caller already resolved via the token', async () => {
+    const res = await request(app).get(`/api/gallery/resolve/${SHARE_TOKEN}`);
+    expect(res.status).toBe(200);
+    expect(res.body.token).toBe(SHARE_TOKEN);
+    expect(res.body.matchType).toMatch(/token/);
+  });
+
+  it('does NOT leak the token via SQL LIKE wildcards in the link_partial fallback', async () => {
+    // Before the escaping fix, an anonymous request of 32 underscores matched
+    // any share_link ending in a 32-char token (`_` = single-char wildcard),
+    // resolved as matchType 'link_partial', and handed back the bearer token.
+    // The share_token here has no underscores, so an escaped LIKE must miss.
+    const res = await request(app).get(`/api/gallery/resolve/${'_'.repeat(SHARE_TOKEN.length)}`);
+    expect(res.status).toBe(404);
+    expect(res.body.token).toBeUndefined();
+    expect(JSON.stringify(res.body)).not.toContain(SHARE_TOKEN);
+  });
+});

backend/__tests__/routes/gallerySqliteBooleanFlags.test.js

@@ -0,0 +1,188 @@
+/**
+ * SQLite boolean coercion in the guest gallery surface (#1028).
+ *
+ * SQLite stores booleans as 0/1; Postgres stores true/false. The /photos
+ * payload and every download guard compared strictly against `true`/`false`,
+ * so on SQLite:
+ *
+ *   allow_downloads:    0 !== false → true   (button shown while disabled)
+ *   allow_user_uploads: 1 === true  → false  (button hidden while enabled)
+ *   if (allow_downloads === false)  → never fires, so ALL download endpoints
+ *                                     kept serving with downloads switched off
+ *
+ * (The download-jobs route asserted on main is #858, which is beta-only —
+ * this branch covers the three download endpoints that exist here.)
+ *
+ * The harness runs on SQLite, so these assertions exercise the real engine
+ * values rather than a mock. Every test here fails on the unfixed code.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-sqlite-flags-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'sqlite-flags-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-sqlite-flags-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+const SLUG = 'sqlite-flags-gallery';
+
+describe('gallery flags survive SQLite 0/1 storage (#1028)', () => {
+  let db; let cleanup; let app; let eventId; let photoId;
+
+  async function setEventFlags(patch) {
+    await db('events').where('id', eventId).update(patch);
+  }
+
+  async function getPayload() {
+    const res = await request(app).get(`/api/gallery/${SLUG}/photos`);
+    expect(res.status).toBe(200);
+    return res.body.event;
+  }
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const ev = await db('events').insert({
+      slug: SLUG,
+      event_type: 'wedding',
+      event_name: 'SQLite Flags',
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_link: `/gallery/${SLUG}/s`,
+      share_token: 'sqlite-flags-share',
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1,
+      is_archived: 0,
+      is_draft: 0,
+      // Password-free so verifyGalleryAccess takes the public path and loads
+      // the row with SELECT * — i.e. the raw 0/1 values, same as production.
+      require_password: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    eventId = ev[0]?.id ?? ev[0];
+
+    const ph = await db('photos').insert({
+      event_id: eventId,
+      filename: 'p.jpg',
+      path: `${SLUG}/p.jpg`,
+      type: 'individual',
+      uploaded_at: new Date().toISOString(),
+    }).returning('id');
+    photoId = ph[0]?.id ?? ph[0];
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/gallery', require('../../src/routes/gallery'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  test('the engine under test really is SQLite storing 0/1', async () => {
+    expect(['sqlite3', 'better-sqlite3']).toContain(db.client.config.client);
+    await setEventFlags({ allow_downloads: 0 });
+    const row = await db('events').where('id', eventId).first('allow_downloads');
+    expect(row.allow_downloads).toBe(0);
+  });
+
+  describe('with downloads disabled (allow_downloads = 0)', () => {
+    beforeAll(async () => {
+      await setEventFlags({ allow_downloads: 0, allow_user_uploads: 1 });
+    });
+
+    test('payload reports allow_downloads false (was true — header button shown)', async () => {
+      expect((await getPayload()).allow_downloads).toBe(false);
+    });
+
+    test('payload reports allow_user_uploads true (was false — upload button hidden)', async () => {
+      expect((await getPayload()).allow_user_uploads).toBe(true);
+    });
+
+    test('single-photo download is refused', async () => {
+      const res = await request(app).get(`/api/gallery/${SLUG}/download/${photoId}`);
+      expect(res.status).toBe(403);
+    });
+
+    test('download-all is refused', async () => {
+      const res = await request(app).get(`/api/gallery/${SLUG}/download-all`);
+      expect(res.status).toBe(403);
+    });
+
+    test('download-selected is refused', async () => {
+      const res = await request(app)
+        .post(`/api/gallery/${SLUG}/download-selected`)
+        .send({ photo_ids: [photoId] });
+      expect(res.status).toBe(403);
+    });
+  });
+
+  describe('with downloads enabled (allow_downloads = 1)', () => {
+    beforeAll(async () => {
+      await setEventFlags({ allow_downloads: 1, allow_user_uploads: 0 });
+    });
+
+    test('payload reports allow_downloads true / allow_user_uploads false', async () => {
+      const event = await getPayload();
+      expect(event.allow_downloads).toBe(true);
+      expect(event.allow_user_uploads).toBe(false);
+    });
+
+    test('download-all is no longer refused', async () => {
+      const res = await request(app).get(`/api/gallery/${SLUG}/download-all`);
+      expect(res.status).not.toBe(403);
+    });
+  });
+
+  describe('protection flags', () => {
+    test('0/1 protection toggles are reported the way they are stored', async () => {
+      await setEventFlags({
+        disable_right_click: 1,
+        enable_devtools_protection: 1,
+        use_canvas_rendering: 1,
+        watermark_downloads: 1,
+        overlay_protection: 0,
+      });
+      const event = await getPayload();
+      expect(event.disable_right_click).toBe(true);
+      expect(event.enable_devtools_protection).toBe(true);
+      expect(event.use_canvas_rendering).toBe(true);
+      expect(event.watermark_downloads).toBe(true);
+      expect(event.overlay_protection).toBe(false);
+    });
+  });
+
+  describe('per-category download blocking (#640) on SQLite', () => {
+    test('a category with allow_downloads = 0 is reported as blocked', async () => {
+      const cat = await db('photo_categories').insert({
+        name: 'Blocked', slug: 'blocked', event_id: eventId, is_global: 0, allow_downloads: 0,
+      }).returning('id');
+      const categoryId = cat[0]?.id ?? cat[0];
+      await db('photos').where('id', photoId).update({ category_id: categoryId });
+
+      await setEventFlags({ allow_downloads: 1 });
+      const res = await request(app).get(`/api/gallery/${SLUG}/photos`);
+      expect(res.status).toBe(200);
+
+      const category = res.body.categories.find((c) => c.id === categoryId);
+      expect(category.allow_downloads).toBe(false);
+      const photo = res.body.photos.find((p) => p.id === photoId);
+      expect(photo.category_allow_downloads).toBe(false);
+
+      // …and the per-category guard on the single-photo route fires.
+      const dl = await request(app).get(`/api/gallery/${SLUG}/download/${photoId}`);
+      expect(dl.status).toBe(403);
+    });
+  });
+});

backend/__tests__/routes/hiddenPhotoAccessControl.test.js

@@ -0,0 +1,240 @@
+/**
+ * Hidden/client-only photo access control across the bulk + secure photo
+ * routes (GHSA cluster: fpwq / ghf8 / 3jvw / 9cc4 / 2hqg / jc22).
+ *
+ * A photo with visibility='hidden' is client-only. The main photo-list and
+ * single-photo download/view routes enforced this, but the bulk-download,
+ * protected-image, and secure-image routes shipped without the check —
+ * letting an ordinary guest reach hidden photos. These tests pin that
+ * guests are refused and PIN-clients (accessLevel='client') still succeed.
+ */
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-hidden-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'hidden-photo-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-hidden-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const cookieParser = require('cookie-parser');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+const SLUG = 'hidden-photo-test-event';
+
+describe('hidden-photo access control (GHSA cluster)', () => {
+  let db;
+  let cleanup;
+  let app;
+  let eventId;
+  let visibleId;
+  let hiddenId;
+
+  const guestToken = () => jwt.sign(
+    { eventId, eventSlug: SLUG, type: 'gallery' },
+    process.env.JWT_SECRET,
+    { expiresIn: '1h', issuer: 'picpeak-auth' }
+  );
+  const clientToken = () => jwt.sign(
+    { eventId, eventSlug: SLUG, type: 'gallery', accessLevel: 'client' },
+    process.env.JWT_SECRET,
+    { expiresIn: '1h', issuer: 'picpeak-auth' }
+  );
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const inserted = await db('events').insert({
+      slug: SLUG,
+      event_type: 'wedding',
+      event_name: 'Hidden Photo Test',
+      event_date: '2026-08-01',
+      host_email: 'host@example.com',
+      admin_email: 'admin@example.com',
+      password_hash: 'x',
+      share_link: `/gallery/${SLUG}/share`,
+      share_token: 'hidden-photo-share',
+      expires_at: new Date(Date.now() + 7 * 24 * 3600 * 1000).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0, allow_downloads: 1,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    eventId = inserted[0]?.id ?? inserted[0];
+
+    const photoDir = path.join(process.env.STORAGE_PATH, 'events/active', SLUG);
+    fs.mkdirSync(photoDir, { recursive: true });
+
+    // A real 1x1 PNG so the protected /view route's Sharp processing path
+    // succeeds (fake bytes 500 on metadata()). Content, not extension,
+    // drives Sharp's format detection.
+    const PNG_1x1 = Buffer.from(
+      'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+M8AAAMCAQGV2rY9AAAAAElFTkSuQmCC',
+      'base64'
+    );
+    const mkPhoto = async (filename, visibility) => {
+      fs.writeFileSync(path.join(photoDir, filename), PNG_1x1);
+      const p = await db('photos').insert({
+        event_id: eventId,
+        filename,
+        path: `${SLUG}/${filename}`,
+        type: 'individual',
+        visibility,
+        uploaded_at: new Date().toISOString(),
+      }).returning('id');
+      return p[0]?.id ?? p[0];
+    };
+    visibleId = await mkPhoto('visible.jpg', 'visible');
+    hiddenId = await mkPhoto('hidden.jpg', 'hidden');
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use('/api/gallery', require('../../src/routes/gallery'));
+    app.use('/api/images', require('../../src/routes/protectedImages'));
+    app.use('/api/secure-images', require('../../src/routes/secureImages'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  describe('download-selected (GHSA-ghf8, medium)', () => {
+    it('omits a hidden photo for a guest even when its id is requested', async () => {
+      const res = await request(app)
+        .post(`/api/gallery/${SLUG}/download-selected`)
+        .set('Authorization', `Bearer ${guestToken()}`)
+        .send({ photo_ids: [visibleId, hiddenId] });
+      // The visible photo still zips; the hidden one is filtered out. If
+      // only the hidden id were requested, the filter empties the set → 404.
+      expect(res.status).toBe(200);
+      const solo = await request(app)
+        .post(`/api/gallery/${SLUG}/download-selected`)
+        .set('Authorization', `Bearer ${guestToken()}`)
+        .send({ photo_ids: [hiddenId] });
+      expect(solo.status).toBe(404);
+    });
+
+    it('includes the hidden photo for a client', async () => {
+      const res = await request(app)
+        .post(`/api/gallery/${SLUG}/download-selected`)
+        .set('Authorization', `Bearer ${clientToken()}`)
+        .send({ photo_ids: [hiddenId] });
+      expect(res.status).toBe(200);
+    });
+  });
+
+  describe('download-all (GHSA-fpwq, medium)', () => {
+    it('streams for a guest without erroring (hidden photos filtered)', async () => {
+      const res = await request(app)
+        .get(`/api/gallery/${SLUG}/download-all`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(res.status).toBe(200);
+    });
+  });
+
+  describe('protected-image view (GHSA-9cc4)', () => {
+    it('403s a hidden photo for a guest', async () => {
+      const res = await request(app)
+        .get(`/api/images/${SLUG}/photo/${hiddenId}/view`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(res.status).toBe(403);
+    });
+    it('serves a visible photo for a guest', async () => {
+      const res = await request(app)
+        .get(`/api/images/${SLUG}/photo/${visibleId}/view`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(res.status).toBe(200);
+    });
+    it('serves a hidden photo for a client', async () => {
+      const res = await request(app)
+        .get(`/api/images/${SLUG}/photo/${hiddenId}/view`)
+        .set('Authorization', `Bearer ${clientToken()}`);
+      expect(res.status).toBe(200);
+    });
+  });
+
+  describe('signed-URL mint (GHSA-3jvw)', () => {
+    it('403s minting a signed URL for a hidden photo as a guest', async () => {
+      const res = await request(app)
+        .post(`/api/images/${SLUG}/photo/${hiddenId}/generate-url`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(res.status).toBe(403);
+    });
+    it('mints for a client', async () => {
+      const res = await request(app)
+        .post(`/api/images/${SLUG}/photo/${hiddenId}/generate-url`)
+        .set('Authorization', `Bearer ${clientToken()}`);
+      expect(res.status).toBe(200);
+      expect(res.body.url).toContain('/signed/');
+    });
+  });
+
+  describe('legacy secure-token mint (protectedImages generate-secure-token)', () => {
+    it('403s a hidden photo for a guest', async () => {
+      const res = await request(app)
+        .post(`/api/images/${SLUG}/photo/${hiddenId}/generate-secure-token`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(res.status).toBe(403);
+    });
+    it('mints for a client', async () => {
+      const res = await request(app)
+        .post(`/api/images/${SLUG}/photo/${hiddenId}/generate-secure-token`)
+        .set('Authorization', `Bearer ${clientToken()}`);
+      expect(res.status).toBe(200);
+      expect(res.body.token).toBeDefined();
+    });
+  });
+
+  describe('secure-token mint (GHSA-2hqg)', () => {
+    it('403s minting a secure token for a hidden photo as a guest', async () => {
+      const res = await request(app)
+        .post(`/api/secure-images/${SLUG}/generate-token`)
+        .set('Authorization', `Bearer ${guestToken()}`)
+        .send({ photoId: hiddenId });
+      expect(res.status).toBe(403);
+    });
+    it('mints for a client', async () => {
+      const res = await request(app)
+        .post(`/api/secure-images/${SLUG}/generate-token`)
+        .set('Authorization', `Bearer ${clientToken()}`)
+        .send({ photoId: hiddenId });
+      expect(res.status).toBe(200);
+      expect(res.body.token).toBeDefined();
+    });
+  });
+
+  // A capability minted while a photo is visible must stop serving once the
+  // photo is hidden — unless minted by a client (clientBypass in the token).
+  describe('signed-URL TOCTOU (hidden AFTER minting)', () => {
+    afterEach(async () => {
+      await db('photos').where({ id: visibleId }).update({ visibility: 'visible' });
+    });
+
+    it("a guest's pre-minted signed URL stops serving once the photo is hidden", async () => {
+      const mint = await request(app)
+        .post(`/api/images/${SLUG}/photo/${visibleId}/generate-url`)
+        .set('Authorization', `Bearer ${guestToken()}`);
+      expect(mint.status).toBe(200);
+      const url = mint.body.url;
+      // Still visible → serves.
+      expect((await request(app).get(url)).status).toBe(200);
+      // Hide it → the guest token (no clientBypass) must now be refused.
+      await db('photos').where({ id: visibleId }).update({ visibility: 'hidden' });
+      expect((await request(app).get(url)).status).toBe(403);
+    });
+
+    it("a client's pre-minted signed URL keeps serving after the photo is hidden", async () => {
+      const mint = await request(app)
+        .post(`/api/images/${SLUG}/photo/${visibleId}/generate-url`)
+        .set('Authorization', `Bearer ${clientToken()}`);
+      expect(mint.status).toBe(200);
+      const url = mint.body.url;
+      await db('photos').where({ id: visibleId }).update({ visibility: 'hidden' });
+      expect((await request(app).get(url)).status).toBe(200);
+    });
+  });
+});

backend/__tests__/routes/logoDiagnostic.test.js

@@ -0,0 +1,123 @@
+/**
+ * Logo diagnostic must not leak the filesystem layout, and must mirror what
+ * resolveLogoFile actually tries (GHSA-29vm, codex round 2).
+ *
+ * Round 1 relativised `resolvedTo` and the candidate paths but still echoed
+ * `sources[].value` verbatim — and branding_logo_path is stored ABSOLUTE by
+ * multer, so the layout went out anyway. It also dropped the raw-absolute
+ * candidate, which the resolver retains (subject to containment), making the
+ * diagnostic report every candidate as missing for a legitimately contained
+ * absolute logo while `resolvedTo` named the file.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-logodiag-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'logodiag-test-secret';
+
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('logo diagnostic disclosure (GHSA-29vm)', () => {
+  let db; let cleanup; let app; let token;
+  // bootCrmDb() sets STORAGE_PATH itself, so resolve these AFTER it runs.
+  let STORAGE; let logoDir; let logoPath;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    // A legitimately contained absolute logo in a NON-standard storage subdir.
+    STORAGE = process.env.STORAGE_PATH;
+    logoDir = path.join(STORAGE, 'custom');
+    logoPath = path.join(logoDir, 'logo.png');
+    fs.mkdirSync(logoDir, { recursive: true });
+    fs.writeFileSync(logoPath, 'png');
+
+    const setting = { setting_key: 'branding_logo_path', setting_value: JSON.stringify(logoPath), setting_type: 'branding' };
+    const existing = await db('app_settings').where({ setting_key: 'branding_logo_path' }).first();
+    if (existing) await db('app_settings').where({ setting_key: 'branding_logo_path' }).update(setting);
+    else await db('app_settings').insert(setting);
+
+    const role = await db('roles').where({ name: 'super_admin' }).first();
+    const r = await db('admin_users').insert({
+      username: 'diag-admin', email: 'diag@example.com',
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id, is_active: 1,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    const id = r[0]?.id ?? r[0];
+    token = jwt.sign(
+      { id, username: 'diag-admin', type: 'admin', role: 'super_admin', loginTime: Date.now() },
+      process.env.JWT_SECRET, { expiresIn: '1h', issuer: 'picpeak-auth' },
+    );
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/admin/business-profile', require('../../src/routes/adminBusinessProfile'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('does not leak absolute paths, cwd or storage root anywhere in the payload', async () => {
+    const res = await request(app)
+      .get('/api/admin/business-profile/logo-diagnostic')
+      .set('Authorization', `Bearer ${token}`);
+
+    expect(res.status).toBe(200);
+    const body = JSON.stringify(res.body);
+    expect(body).not.toContain(STORAGE);
+    expect(body).not.toContain(process.cwd());
+    expect(res.body.storageRoot).toBeUndefined();
+    expect(res.body.cwd).toBeUndefined();
+  });
+
+  it('still finds a contained absolute logo outside the standard subdirs', async () => {
+    const res = await request(app)
+      .get('/api/admin/business-profile/logo-diagnostic')
+      .set('Authorization', `Bearer ${token}`);
+
+    const source = res.body.sources.find((s) => s.label === 'app_settings.branding_logo_path');
+    expect(source).toBeTruthy();
+    // The resolver keeps the contained absolute candidate, so the diagnostic
+    // must show it existing rather than reporting everything missing.
+    expect(source.candidates.some((c) => c.exists)).toBe(true);
+    expect(res.body.resolvedTo).toMatch(/^<STORAGE>\//);
+  });
+
+  it('shows the <STORAGE>/<value> candidate for a ROOT-RELATIVE logo URL (round 3)', async () => {
+    // `/custom/logo.png` is a URL, not a disk path, but path.isAbsolute() says
+    // true for both. Gating the stripped joins on isAbsolute() therefore hid
+    // `<STORAGE>/custom/logo.png` — a candidate resolveLogoFile does try and
+    // can resolve — so the diagnostic claimed nothing existed for a logo that
+    // renders fine, and collapsed the configured value to its basename.
+    await db('app_settings').where({ setting_key: 'branding_logo_path' })
+      .update({ setting_value: JSON.stringify('/custom/logo.png') });
+
+    const res = await request(app)
+      .get('/api/admin/business-profile/logo-diagnostic')
+      .set('Authorization', `Bearer ${token}`);
+
+    expect(res.status).toBe(200);
+    const source = res.body.sources.find((s) => s.label === 'app_settings.branding_logo_path');
+    expect(source.candidates.some((c) => c.path === '<STORAGE>/custom/logo.png' && c.exists)).toBe(true);
+
+    // …and the disclosure guarantee still holds for this shape.
+    const body = JSON.stringify(res.body);
+    expect(body).not.toContain(STORAGE);
+    expect(body).not.toContain(process.cwd());
+
+    await db('app_settings').where({ setting_key: 'branding_logo_path' })
+      .update({ setting_value: JSON.stringify(logoPath) });
+  });
+});

backend/__tests__/routes/projectOwnership.test.js

@@ -0,0 +1,181 @@
+/**
+ * Project ownership — GHSA-wrg5 (project routes) and GHSA-93x4 (project email
+ * endpoints).
+ *
+ * Project routes authorized on generic events.view / events.edit with NO
+ * ownership check, so an editor could enumerate, read, update and aggregate
+ * projects belonging to other admins' events. The email endpoints keyed on an
+ * email_queue id alone, so any id could be previewed/resent/cancelled.
+ *
+ * `projects` had no owner column. It was added in migration 167 (backfilled
+ * from linked events) rather than relying only on the transitive
+ * events.project_id -> events.created_by path, because a brand-new EMPTY
+ * project has no linked event to infer an owner from — which is exactly where
+ * the create -> attach flow begins.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-projown-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'projown-test-secret';
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+const jwt = require('jsonwebtoken');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('project ownership (GHSA-wrg5 / GHSA-93x4)', () => {
+  let db; let cleanup; let app;
+  let editorToken; let superToken; let editorId; let superId;
+  let ownProjectId; let foreignProjectId; let foreignEventId; let foreignEmailId;
+
+  const mkAdmin = async (username, roleName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const r = await db('admin_users').insert({
+      username,
+      email: `${username}@example.com`,
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id,
+      is_active: 1,
+      created_at: new Date(),
+      updated_at: new Date(),
+    }).returning('id');
+    const id = r[0]?.id ?? r[0];
+    return {
+      id,
+      token: jwt.sign(
+        { id, username, type: 'admin', role: roleName, loginTime: Date.now() },
+        process.env.JWT_SECRET, { expiresIn: '1h', issuer: 'picpeak-auth' },
+      ),
+    };
+  };
+
+  const mkProject = async (name, createdBy) => {
+    const r = await db('projects').insert({
+      name, status: 'active', created_by: createdBy,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    await db('feature_flags').insert({ key: 'projects', value: 1 })
+      .onConflict('key').merge({ value: 1 });
+
+    const editor = await mkAdmin('proj-editor', 'editor');
+    const sup = await mkAdmin('proj-super', 'super_admin');
+    editorToken = editor.token; editorId = editor.id;
+    superToken = sup.token; superId = sup.id;
+
+    ownProjectId = await mkProject('own-project', editorId);
+    foreignProjectId = await mkProject('foreign-project', superId);
+
+    // A foreign event linked to the foreign project, plus a queued email on it.
+    const ev = await db('events').insert({
+      slug: 'foreign-ev',
+      event_type: 'wedding',
+      event_name: 'Foreign Event',
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_token: 'ftok', share_link: '/gallery/foreign-ev/ftok',
+      created_by: superId,
+      project_id: foreignProjectId,
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    foreignEventId = ev[0]?.id ?? ev[0];
+
+    const em = await db('email_queue').insert({
+      event_id: foreignEventId,
+      recipient_email: 'client@example.com',
+      email_type: 'gallery_created',
+      status: 'sent',
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    foreignEmailId = em[0]?.id ?? em[0];
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/admin/projects', require('../../src/routes/adminProjects'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('lists only the editor\'s own projects', async () => {
+    const res = await request(app)
+      .get('/api/admin/projects')
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect(res.status).toBe(200);
+    const names = (res.body.projects || res.body.data?.projects || []).map((p) => p.name);
+    expect(names).toContain('own-project');
+    expect(names).not.toContain('foreign-project');
+  });
+
+  it('refuses to read a foreign project', async () => {
+    const res = await request(app)
+      .get(`/api/admin/projects/${foreignProjectId}`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect([403, 404]).toContain(res.status);
+  });
+
+  it('refuses to update or aggregate a foreign project', async () => {
+    const update = await request(app)
+      .put(`/api/admin/projects/${foreignProjectId}`)
+      .set('Authorization', `Bearer ${editorToken}`)
+      .send({ name: 'hijacked' });
+    expect([403, 404]).toContain(update.status);
+
+    const overview = await request(app)
+      .get(`/api/admin/projects/${foreignProjectId}/overview`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect([403, 404]).toContain(overview.status);
+
+    // And the name must not have changed.
+    const row = await db('projects').where({ id: foreignProjectId }).first();
+    expect(row.name).toBe('foreign-project');
+  });
+
+  it('refuses to attach a FOREIGN event to an owned project', async () => {
+    const res = await request(app)
+      .post(`/api/admin/projects/${ownProjectId}/events`)
+      .set('Authorization', `Bearer ${editorToken}`)
+      .send({ eventId: foreignEventId });
+
+    expect([403, 404]).toContain(res.status);
+    const ev = await db('events').where({ id: foreignEventId }).first();
+    expect(ev.project_id).toBe(foreignProjectId); // still attached to its own
+  });
+
+  it('refuses to preview or act on a foreign queued email (GHSA-93x4)', async () => {
+    const preview = await request(app)
+      .get(`/api/admin/projects/email/${foreignEmailId}/preview`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect([403, 404]).toContain(preview.status);
+
+    const cancel = await request(app)
+      .post(`/api/admin/projects/email/${foreignEmailId}/cancel`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect([403, 404]).toContain(cancel.status);
+  });
+
+  it('leaves super_admin unrestricted', async () => {
+    const res = await request(app)
+      .get(`/api/admin/projects/${foreignProjectId}`)
+      .set('Authorization', `Bearer ${superToken}`);
+    expect(res.status).toBe(200);
+  });
+});

backend/__tests__/routes/projectOwnershipEdgeCases.test.js

@@ -0,0 +1,115 @@
+/**
+ * Project ownership edge cases (GHSA-wrg5, codex round 2).
+ *
+ * The first predicate union'd "any linked event I can see" with the stored
+ * owner, which opened two holes:
+ *   - a project owned by B containing ONE legacy ownerless event became
+ *     readable by everyone (and /overview aggregates B's other events,
+ *     invoices and emails);
+ *   - migration 167 deliberately leaves multi-owner projects NULL, and a NULL
+ *     owner was treated as "everyone's".
+ * The stored owner is now authoritative, and a NULL owner only derives access
+ * when EVERY linked event is accessible.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-projedge-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'projedge-test-secret';
+
+const bcrypt3 = require('bcrypt');
+const { bootCrmDb: boot3, seedMinimal: seed3 } = require('../integration/helpers/crmDb');
+
+describe('project ownership edge cases (GHSA-wrg5, round 2)', () => {
+  let db3; let cleanup3; let ownership; let editorA; let editorB;
+
+  const mkAdmin3 = async (username, roleName) => {
+    const role = await db3('roles').where({ name: roleName }).first();
+    const r = await db3('admin_users').insert({
+      username, email: `${username}@example.com`,
+      password_hash: await bcrypt3.hash('Passw0rd!', 4),
+      role_id: role.id, is_active: 1,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+  const mkProject3 = async (name, createdBy) => {
+    const r = await db3('projects').insert({
+      name, status: 'active', created_by: createdBy,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+  const mkEvent3 = async (slug, createdBy, projectId) => {
+    const r = await db3('events').insert({
+      slug, event_type: 'wedding', event_name: slug, event_date: '2026-08-01',
+      host_email: 'h@e.com', admin_email: 'a@e.com', password_hash: 'x',
+      share_token: `t-${slug}`, share_link: `/g/${slug}/t-${slug}`,
+      created_by: createdBy, project_id: projectId,
+      expires_at: new Date(Date.now() + 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db: db3, cleanup: cleanup3 } = await boot3());
+    await seed3(db3);
+    ownership = require('../../src/middleware/ownership');
+    editorA = await mkAdmin3('edge-a', 'editor');
+    editorB = await mkAdmin3('edge-b', 'editor');
+  }, 120000);
+
+  afterAll(async () => { if (cleanup3) await cleanup3(); });
+
+  it('one ownerless event in B\'s project does not expose it to A', async () => {
+    const pid = await mkProject3('b-project', editorB);
+    await mkEvent3('b-owned-ev', editorB, pid);
+    await mkEvent3('legacy-ev', null, pid); // ownerless legacy event
+
+    const idsA = await ownership.ownedProjectIds({ id: editorA, roleName: 'editor' });
+    expect(idsA).not.toContain(Number(pid));
+
+    const idsB = await ownership.ownedProjectIds({ id: editorB, roleName: 'editor' });
+    expect(idsB).toContain(Number(pid));
+  });
+
+  it('a mixed-owner project left NULL by migration 167 is not global', async () => {
+    const pid = await mkProject3('ambiguous', null);
+    await mkEvent3('mix-a-ev', editorA, pid);
+    await mkEvent3('mix-b-ev', editorB, pid);
+
+    for (const who of [editorA, editorB]) {
+      const ids = await ownership.ownedProjectIds({ id: who, roleName: 'editor' });
+      expect(ids).not.toContain(Number(pid));
+    }
+  });
+
+  it('a NULL-owner project whose events are all mine IS mine', async () => {
+    const pid = await mkProject3('legacy-mine', null);
+    await mkEvent3('mine-ev', editorA, pid);
+
+    const ids = await ownership.ownedProjectIds({ id: editorA, roleName: 'editor' });
+    expect(ids).toContain(Number(pid));
+  });
+
+  it('a project whose creator was deleted falls back to its events', async () => {
+    const ghost = await mkAdmin3('ghost-admin', 'editor');
+    const pid = await mkProject3('orphaned', ghost);
+    await mkEvent3('orphan-ev', editorA, pid);
+    await db3('admin_users').where({ id: ghost }).del();
+
+    const ids = await ownership.ownedProjectIds({ id: editorA, roleName: 'editor' });
+    expect(ids).toContain(Number(pid));
+  });
+
+  it('super_admin stays unrestricted', async () => {
+    expect(await ownership.ownedProjectIds({ id: 1, roleName: 'super_admin' })).toBeNull();
+  });
+});

backend/__tests__/routes/restorePathAllowlist.test.js

@@ -0,0 +1,86 @@
+/**
+ * Restore path containment must not break the normal restore wizard
+ * (GHSA-fw4c, codex round 2).
+ *
+ * `source` is usually a SOURCE TYPE, not a path: RestoreWizard posts
+ * 'local' | 's3' | 'upload', and restoreService.restore() branches on those
+ * literals before deriving a directory. The first version of the containment
+ * check treated `source` as a path, so path.resolve('local') landed outside
+ * the configured backup roots and BOTH /validate and /start returned 400 —
+ * blocking every normal restore.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-restorepath-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'restorepath-test-secret';
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('restore path allowlist (GHSA-fw4c)', () => {
+  let db; let cleanup; let checkRestorePathsAllowed;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    // Configure a backup root so the allowlist is actually active.
+    for (const [key, value] of [['backup_destination_path', '/backup']]) {
+      const existing = await db('app_settings').where({ setting_key: key }).first();
+      if (existing) {
+        await db('app_settings').where({ setting_key: key }).update({ setting_value: JSON.stringify(value) });
+      } else {
+        await db('app_settings').insert({
+          setting_key: key, setting_value: JSON.stringify(value), setting_type: 'backup',
+        });
+      }
+    }
+
+    ({ checkRestorePathsAllowed } = require('../../src/routes/adminRestore')._internal);
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('allows the wizard\'s source TYPE tokens', async () => {
+    for (const source of ['local', 's3', 'upload']) {
+      const err = await checkRestorePathsAllowed({
+        source, manifestPath: '/backup/manifests/backup-manifest-1.json',
+      });
+      expect(err).toBeNull();
+    }
+  });
+
+  it('allows an s3:// source URL', async () => {
+    const err = await checkRestorePathsAllowed({
+      source: 's3://bucket/key/backup.tar.gz',
+      manifestPath: '/backup/manifests/backup-manifest-1.json',
+    });
+    expect(err).toBeNull();
+  });
+
+  it('still rejects a manifestPath outside the configured roots', async () => {
+    const err = await checkRestorePathsAllowed({
+      source: 'local', manifestPath: '/etc/passwd',
+    });
+    expect(err).toMatch(/inside a configured backup location/i);
+  });
+
+  it('still rejects a traversal manifestPath', async () => {
+    const err = await checkRestorePathsAllowed({
+      source: 'local', manifestPath: '/backup/../etc/shadow',
+    });
+    expect(err).toBeTruthy();
+  });
+
+  it('accepts a real path source inside the roots', async () => {
+    const err = await checkRestorePathsAllowed({
+      source: '/backup/run-1', manifestPath: '/backup/run-1/manifest.json',
+    });
+    expect(err).toBeNull();
+  });
+});

backend/__tests__/routes/v1EventOwnership.test.js

@@ -0,0 +1,155 @@
+/**
+ * v1 API tokens must respect event ownership (GHSA-9697).
+ *
+ * migration 081 documents the intent — "the token's effective permissions are
+ * the intersection of the user's role permissions and the token's own scope
+ * flags" — but it was never implemented:
+ *
+ *   - apiTokenAuth selected only id/username/email/role_id, so
+ *     req.admin.roleName was undefined and every ownership helper (which all
+ *     key on roleName) could not distinguish a super_admin from a viewer.
+ *   - No v1 route applied requirePermission or a created_by predicate, so any
+ *     valid token listed every event and — worst — GET /events/:id/share-link
+ *     returned ANY event's share_token, which is the gallery access credential.
+ *
+ * Scenario pinned here: a token owned by a restricted (non-super_admin) admin
+ * must see only its owner's events, and must not obtain a foreign share_token.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-v1own-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'v1own-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-v1own-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+const { generateApiToken } = require('../../src/middleware/apiTokenAuth');
+
+describe('v1 event ownership (GHSA-9697)', () => {
+  let db; let cleanup; let app;
+  let editorToken; let superToken;
+  let ownEventId; let foreignEventId;
+  const FOREIGN_SHARE_TOKEN = 'f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0';
+
+  const mkAdmin = async (username, roleName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const r = await db('admin_users').insert({
+      username,
+      email: `${username}@example.com`,
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id,
+      is_active: 1,
+      created_at: new Date(),
+      updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  const mkToken = async (adminId, scopes = 'admin') => {
+    const { plaintext, hashed } = generateApiToken();
+    await db('api_tokens').insert({
+      name: `tok-${adminId}`,
+      hashed_token: hashed,
+      scopes,
+      created_by: adminId,
+      created_at: new Date().toISOString(),
+    });
+    return plaintext;
+  };
+
+  const mkEvent = async (slug, createdBy, shareToken) => {
+    const r = await db('events').insert({
+      slug,
+      event_type: 'wedding',
+      event_name: slug,
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_token: shareToken,
+      share_link: `/gallery/${slug}/${shareToken}`,
+      created_by: createdBy,
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const editorId = await mkAdmin('restricted-editor', 'editor');
+    const superId = await mkAdmin('root-admin', 'super_admin');
+    editorToken = await mkToken(editorId);
+    superToken = await mkToken(superId);
+
+    ownEventId = await mkEvent('own-event', editorId, 'a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1');
+    foreignEventId = await mkEvent('foreign-event', superId, FOREIGN_SHARE_TOKEN);
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/v1', require('../../src/routes/v1/events'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('lists only the token owner\'s events', async () => {
+    const res = await request(app)
+      .get('/api/v1/events')
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect(res.status).toBe(200);
+    const slugs = res.body.events.map((e) => e.slug);
+    expect(slugs).toContain('own-event');
+    expect(slugs).not.toContain('foreign-event');
+  });
+
+  it('refuses to read a foreign event', async () => {
+    const res = await request(app)
+      .get(`/api/v1/events/${foreignEventId}`)
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect([403, 404]).toContain(res.status);
+  });
+
+  it('does NOT hand out a foreign event\'s share_token', async () => {
+    const res = await request(app)
+      .get(`/api/v1/events/${foreignEventId}/share-link`)
+      .set('Authorization', `Bearer ${editorToken}`);
+
+    expect([403, 404]).toContain(res.status);
+    expect(JSON.stringify(res.body)).not.toContain(FOREIGN_SHARE_TOKEN);
+  });
+
+  it('still allows the owner to read their own event and share link', async () => {
+    const detail = await request(app)
+      .get(`/api/v1/events/${ownEventId}`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect(detail.status).toBe(200);
+
+    const share = await request(app)
+      .get(`/api/v1/events/${ownEventId}/share-link`)
+      .set('Authorization', `Bearer ${editorToken}`);
+    expect(share.status).toBe(200);
+    expect(share.body.share_token).toBe('a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1');
+  });
+
+  it('leaves super_admin tokens unrestricted', async () => {
+    const res = await request(app)
+      .get(`/api/v1/events/${foreignEventId}/share-link`)
+      .set('Authorization', `Bearer ${superToken}`);
+    expect(res.status).toBe(200);
+    expect(res.body.share_token).toBe(FOREIGN_SHARE_TOKEN);
+  });
+});

backend/__tests__/routes/v1TokenPermissions.test.js

@@ -0,0 +1,108 @@
+/**
+ * v1 token scopes must intersect the owner's CURRENT role permissions
+ * (GHSA-9697, codex round 2).
+ *
+ * Migration 081 documents effective permissions as the intersection of the
+ * owner's role permissions and the token's scope flags. requireApiScope only
+ * ever checked the scope half, so a token minted while its owner was
+ * super_admin kept full write access after the owner was demoted to viewer —
+ * userManagementService never touches api_tokens, so the token outlives the
+ * demotion. Ownership scoping alone does not close this: the demoted owner
+ * still *owns* their events.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-v1perm-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'v1perm-test-secret';
+process.env.STORAGE_PATH = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-v1perm-storage-'));
+
+const request = require('supertest');
+const express = require('express');
+const bcrypt = require('bcrypt');
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+const { generateApiToken } = require('../../src/middleware/apiTokenAuth');
+
+describe('v1 token scopes intersect role permissions (GHSA-9697)', () => {
+  let db; let cleanup; let app; let viewerToken; let viewerEventId;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    const role = await db('roles').where({ name: 'viewer' }).first();
+    const r = await db('admin_users').insert({
+      username: 'demoted-owner',
+      email: 'demoted@example.com',
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id,
+      is_active: 1,
+      created_at: new Date(),
+      updated_at: new Date(),
+    }).returning('id');
+    const ownerId = r[0]?.id ?? r[0];
+
+    // A token still carrying the broad 'admin' scope from before demotion.
+    const { plaintext, hashed } = generateApiToken();
+    await db('api_tokens').insert({
+      name: 'stale-token',
+      hashed_token: hashed,
+      scopes: 'admin',
+      created_by: ownerId,
+      created_at: new Date().toISOString(),
+    });
+    viewerToken = plaintext;
+
+    const ev = await db('events').insert({
+      slug: 'viewer-ev',
+      event_type: 'wedding',
+      event_name: 'Viewer Event',
+      event_date: '2026-08-01',
+      host_email: 'h@example.com',
+      admin_email: 'a@example.com',
+      password_hash: 'x',
+      share_token: 'vtok',
+      share_link: '/gallery/viewer-ev/vtok',
+      created_by: ownerId,
+      expires_at: new Date(Date.now() + 7 * 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    viewerEventId = ev[0]?.id ?? ev[0];
+
+    app = express();
+    app.use(express.json());
+    app.use('/api/v1', require('../../src/routes/v1/events'));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('denies event creation to a demoted viewer despite an admin-scope token', async () => {
+    const res = await request(app)
+      .post('/api/v1/events')
+      .set('Authorization', `Bearer ${viewerToken}`)
+      .send({ event_name: 'Nope', event_type: 'wedding' });
+    expect(res.status).toBe(403);
+  });
+
+  it('denies photo upload to a demoted viewer on their OWN event', async () => {
+    const res = await request(app)
+      .post(`/api/v1/events/${viewerEventId}/photos`)
+      .set('Authorization', `Bearer ${viewerToken}`)
+      .attach('photo', Buffer.from('x'), 'a.jpg');
+    expect(res.status).toBe(403);
+  });
+
+  it('still allows the viewer to READ their own event', async () => {
+    const res = await request(app)
+      .get(`/api/v1/events/${viewerEventId}`)
+      .set('Authorization', `Bearer ${viewerToken}`);
+    expect(res.status).toBe(200);
+  });
+});

backend/__tests__/services/backupRestoreHardening.test.js

@@ -0,0 +1,241 @@
+/**
+ * Backup/restore hardening — GHSA-h652 (unbounded gunzip) and GHSA-hgp8
+ * (unkeyed manifest checksum).
+ *
+ * h652: decompressFile() piped gunzip straight to disk with no expanded-size
+ * bound, so a small crafted .gz could fill the volume.
+ *
+ * hgp8: the manifest checksum is a plain SHA-256 — it proves the manifest was
+ * not corrupted, not that it is authentic. BACKUP_MANIFEST_KEY upgrades new
+ * manifests to a keyed HMAC. It is deliberately OPT-IN and verify-if-present:
+ * the key cannot live in the database (the database is inside the backup), so
+ * a mandatory HMAC would lock an operator out of the exact disaster-recovery
+ * case this system exists for.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+const zlib = require('zlib');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-bkharden-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'bkharden-test-secret';
+
+const { restoreService } = require('../../src/services/restoreService');
+const backupManifest = require('../../src/services/backupManifest');
+
+describe('decompressFile expanded-size bound (GHSA-h652)', () => {
+  let dir;
+
+  beforeAll(() => { dir = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-gz-')); });
+  afterAll(() => { fs.rmSync(dir, { recursive: true, force: true }); });
+  afterEach(() => { delete process.env.RESTORE_MAX_DECOMPRESSED_BYTES; });
+
+  it('aborts when the decompressed stream exceeds the limit', async () => {
+    // 5 MB of zeroes compresses to a few KB — the classic shape of the attack.
+    const gzPath = path.join(dir, 'bomb.gz');
+    fs.writeFileSync(gzPath, zlib.gzipSync(Buffer.alloc(5 * 1024 * 1024, 0)));
+
+    process.env.RESTORE_MAX_DECOMPRESSED_BYTES = String(64 * 1024); // 64 KB
+    await expect(
+      restoreService.decompressFile(gzPath, path.join(dir, 'out-bomb'))
+    ).rejects.toThrow(/exceeds limit/i);
+  });
+
+  it('still decompresses a normal file within the limit', async () => {
+    const payload = Buffer.from('SELECT 1;\n'.repeat(100));
+    const gzPath = path.join(dir, 'ok.gz');
+    fs.writeFileSync(gzPath, zlib.gzipSync(payload));
+
+    const outPath = path.join(dir, 'out-ok');
+    await restoreService.decompressFile(gzPath, outPath);
+    expect(fs.readFileSync(outPath)).toEqual(payload);
+  });
+});
+
+describe('manifest checksum keying (GHSA-hgp8)', () => {
+  // validateManifest requires all of these sections to be present.
+  const baseManifest = () => ({
+    manifest: { version: '1.0', id: 'test' },
+    backup: { type: 'full' },
+    system: { platform: 'linux' },
+    application: { version: '1.0.0' },
+    files: { count: 1, manifest: [{ path: 'a.jpg', size: 1 }] },
+    database: { type: 'sqlite' },
+    verification: { total_checksum: null, checksum_algorithm: null },
+  });
+
+  afterEach(() => { delete process.env.BACKUP_MANIFEST_KEY; });
+
+  it('produces a different digest when a key is set', () => {
+    const m = baseManifest();
+    const unkeyed = backupManifest.calculateManifestChecksum(m, { keyed: false });
+    const keyed = backupManifest.calculateManifestChecksum(m, { keyed: 'secret-key' });
+    expect(keyed).not.toBe(unkeyed);
+  });
+
+  it('validates a legacy unkeyed manifest even when a key IS configured', () => {
+    // Disaster recovery: manifests written before keying must not become
+    // un-restorable the moment the operator sets a key.
+    const m = baseManifest();
+    m.verification.checksum_algorithm = 'sha256';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: false });
+
+    process.env.BACKUP_MANIFEST_KEY = 'secret-key';
+    expect(() => backupManifest.validateManifest(m)).not.toThrow();
+  });
+
+  it('accepts a keyed manifest when the matching key is configured', () => {
+    process.env.BACKUP_MANIFEST_KEY = 'secret-key';
+    const m = baseManifest();
+    m.verification.checksum_algorithm = 'hmac-sha256';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: 'secret-key' });
+
+    expect(() => backupManifest.validateManifest(m)).not.toThrow();
+  });
+
+  it('rejects a keyed manifest whose body was tampered with', () => {
+    process.env.BACKUP_MANIFEST_KEY = 'secret-key';
+    const m = baseManifest();
+    m.verification.checksum_algorithm = 'hmac-sha256';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: 'secret-key' });
+
+    m.files.manifest[0].path = '../../etc/passwd';
+    expect(() => backupManifest.validateManifest(m)).toThrow(/checksum verification failed/i);
+  });
+
+  it('does NOT brick restore when a keyed manifest meets a missing key', () => {
+    // Key lost with the host — the precise moment a restore is needed.
+    const m = baseManifest();
+    m.verification.checksum_algorithm = 'hmac-sha256';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: 'secret-key' });
+
+    delete process.env.BACKUP_MANIFEST_KEY;
+    expect(() => backupManifest.validateManifest(m)).not.toThrow();
+  });
+});
+
+describe('manifest checksum coverage (canonicalization)', () => {
+  const fullManifest = () => ({
+    manifest: { version: '1.0', id: 'test' },
+    backup: { type: 'full' },
+    system: { platform: 'linux' },
+    application: { version: '1.0.0' },
+    files: { count: 1, manifest: [{ path: 'a.jpg', size: 1 }] },
+    database: { type: 'sqlite' },
+    verification: { total_checksum: null, checksum_algorithm: 'sha256' },
+  });
+
+  afterEach(() => { delete process.env.BACKUP_MANIFEST_KEY; });
+
+  it('covers nested file entries (the old replacer dropped them)', () => {
+    const m = fullManifest();
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: false });
+    // Tampering a file path must now change the digest.
+    m.files.manifest[0].path = '../../etc/passwd';
+    expect(() => backupManifest.validateManifest(m)).toThrow(/checksum verification failed/i);
+  });
+
+  it('still accepts a manifest written with the legacy serialization', () => {
+    const m = fullManifest();
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(
+      m, { keyed: false, legacy: true }
+    );
+    expect(() => backupManifest.validateManifest(m)).not.toThrow();
+  });
+});
+
+describe('checksum verification is shared and downgrade-aware (codex round 2)', () => {
+  const fullManifest = () => ({
+    manifest: { version: '1.0', id: 'test' },
+    backup: { type: 'full' },
+    system: { platform: 'linux' },
+    application: { version: '1.0.0' },
+    files: { count: 1, manifest: [{ path: 'a.jpg', size: 1 }] },
+    database: { type: 'sqlite' },
+    verification: { total_checksum: null, checksum_algorithm: 'sha256' },
+  });
+
+  afterEach(() => {
+    delete process.env.BACKUP_MANIFEST_KEY;
+    delete process.env.BACKUP_MANIFEST_REQUIRE_KEYED;
+  });
+
+  it('accepts a legacy-serialized manifest through the SHARED verifier', () => {
+    // restoreService recomputed the digest itself with the canonical
+    // serializer, which rejected every pre-existing backup.
+    const m = fullManifest();
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(
+      m, { keyed: false, legacy: true },
+    );
+    const res = backupManifest.verifyManifestChecksum(m);
+    expect(res.valid).toBe(true);
+    expect(res.warnings.join(' ')).toMatch(/legacy checksum serialization/i);
+  });
+
+  it('warns but accepts an unkeyed manifest when a key is configured', () => {
+    const m = fullManifest();
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: false });
+    process.env.BACKUP_MANIFEST_KEY = 'secret-key';
+
+    const res = backupManifest.verifyManifestChecksum(m);
+    expect(res.valid).toBe(true);
+    expect(res.warnings.join(' ')).toMatch(/authenticity NOT established/i);
+  });
+
+  it('REJECTS the algorithm downgrade once REQUIRE_KEYED is on', () => {
+    // Attacker rewrites the manifest, strips checksum_algorithm and recomputes
+    // a plain SHA-256. With the strict flag set that must not verify.
+    const m = fullManifest();
+    m.files.manifest[0].path = '../../etc/passwd';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: false });
+
+    process.env.BACKUP_MANIFEST_KEY = 'secret-key';
+    process.env.BACKUP_MANIFEST_REQUIRE_KEYED = 'true';
+
+    const res = backupManifest.verifyManifestChecksum(m);
+    expect(res.valid).toBe(false);
+    expect(res.error).toMatch(/downgrade/i);
+  });
+
+  it('rejects a keyed manifest with no key when REQUIRE_KEYED is on', () => {
+    const m = fullManifest();
+    m.verification.checksum_algorithm = 'hmac-sha256';
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: 'k' });
+    process.env.BACKUP_MANIFEST_REQUIRE_KEYED = 'true';
+
+    expect(backupManifest.verifyManifestChecksum(m).valid).toBe(false);
+  });
+
+  it('REJECTS a manifest whose checksum was stripped entirely', () => {
+    // The cheapest bypass of every rule above: delete the field instead of
+    // forging it. Both the helper's early return and restoreService's
+    // `if (…total_checksum)` guard used to wave that through.
+    const m = fullManifest();
+    delete m.verification.total_checksum;
+
+    const res = backupManifest.verifyManifestChecksum(m);
+    expect(res.valid).toBe(false);
+    expect(res.error).toMatch(/no checksum/i);
+
+    delete m.verification;
+    expect(backupManifest.verifyManifestChecksum(m).valid).toBe(false);
+  });
+
+  it('REJECTS an unkeyed manifest under REQUIRE_KEYED even with no key configured', () => {
+    // Strict mode is a claim about the manifests, not about this host — so a
+    // fresh disaster-recovery box that lost BACKUP_MANIFEST_KEY must not
+    // silently start accepting plain SHA-256 manifests again.
+    const m = fullManifest();
+    m.verification.total_checksum = backupManifest.calculateManifestChecksum(m, { keyed: false });
+    process.env.BACKUP_MANIFEST_REQUIRE_KEYED = 'true';
+    delete process.env.BACKUP_MANIFEST_KEY;
+
+    const res = backupManifest.verifyManifestChecksum(m);
+    expect(res.valid).toBe(false);
+    expect(res.error).toMatch(/downgrade/i);
+  });
+});

backend/__tests__/services/businessDocsStoragePath.test.js

@@ -0,0 +1,159 @@
+/**
+ * Regression test: business documents must be written under STORAGE_PATH.
+ *
+ * quoteService.persistDocPdf, the invoice sending/reminder writers and the
+ * contract signature writers all built their target from
+ * `path.join(process.cwd(), 'storage', 'business-docs', ...)`. Both compose
+ * files pin STORAGE_PATH=/app/storage and the image's WORKDIR is /app, so the
+ * two expressions name the same directory and the bug was invisible on a stock
+ * deployment. Point STORAGE_PATH anywhere else — a NAS mount, a second disk,
+ * the single-container image's /data volume — and quotes, invoices, Mahnungen
+ * and contract PDFs were written outside the configured storage root, so they
+ * were missed by backups and lost when the container was replaced.
+ *
+ * Rather than assert on internals, this drives the module boundary the fix
+ * changed: getStoragePath() is the one resolver, so a temporary STORAGE_PATH
+ * must be where the bytes land.
+ */
+
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+
+describe('business documents honour STORAGE_PATH', () => {
+  let tmpRoot;
+  let originalStoragePath;
+
+  beforeEach(() => {
+    originalStoragePath = process.env.STORAGE_PATH;
+    tmpRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-storage-'));
+    process.env.STORAGE_PATH = tmpRoot;
+    jest.resetModules();
+  });
+
+  afterEach(() => {
+    if (originalStoragePath === undefined) delete process.env.STORAGE_PATH;
+    else process.env.STORAGE_PATH = originalStoragePath;
+    fs.rmSync(tmpRoot, { recursive: true, force: true });
+  });
+
+  it('getStoragePath is the resolver the writers share', () => {
+    const { getStoragePath } = require('../../src/config/storage');
+    expect(getStoragePath()).toBe(tmpRoot);
+  });
+
+  it('no business-document writer still targets process.cwd()/storage', () => {
+    // Whitespace is collapsed before matching on purpose. The first version of
+    // this test compared against the single-line literal and therefore missed
+    // persistSignatureImage(), whose identical path.join was simply spread over
+    // seven lines — it reported green while signature PNGs still wrote outside
+    // STORAGE_PATH. Formatting must not decide whether a bug is visible.
+    const writers = [
+      'src/services/quoteService.js',
+      'src/services/invoice/sending.js',
+      'src/services/invoice/reminders.js',
+      'src/services/contract/signatureAssets.js',
+      'src/routes/adminDev.js',
+    ];
+    const offenders = writers.filter((rel) => {
+      const source = fs.readFileSync(path.join(__dirname, '../../', rel), 'utf8');
+      return /process\.cwd\(\),'storage'/.test(source.replace(/\s+/g, ''));
+    });
+    expect(offenders).toEqual([]);
+  });
+
+  it('generated contract PDFs pass the containment check that serves them', () => {
+    // assertContractPdfPath guards the admin and public contract download
+    // routes. It listed only <cwd>/storage/business-docs/contract, so once the
+    // writers moved to STORAGE_PATH every freshly generated contract was
+    // refused with PATH_OUTSIDE_STORAGE — a worse failure than the bug being
+    // fixed. Both roots must be accepted.
+    const { assertContractPdfPath } = require('../../src/utils/safePath');
+    const { getStoragePath } = require('../../src/config/storage');
+
+    // assertPathInside realpaths both the file and each root, so the guard only
+    // means anything against a filesystem that actually has them — write them.
+    const write = (...segments) => {
+      const p = path.join(getStoragePath(), 'business-docs', 'contract', ...segments);
+      fs.mkdirSync(path.dirname(p), { recursive: true });
+      fs.writeFileSync(p, 'bytes');
+      return p;
+    };
+
+    const generated = write('2026', 'C-2026-0001.pdf');
+    expect(() => assertContractPdfPath(generated)).not.toThrow();
+
+    // Signature PNGs live under the same root and are served by the same guard.
+    const signature = write('signatures', '7', 'customer-1.png');
+    expect(() => assertContractPdfPath(signature)).not.toThrow();
+
+    // And the guard still refuses a real file outside every allowed root.
+    const foreign = path.join(tmpRoot, 'outside.pdf');
+    fs.writeFileSync(foreign, 'bytes');
+    expect(() => assertContractPdfPath(foreign)).toThrow(/outside the storage roots/i);
+  });
+
+  it('the guard takes its root from the shared resolver, not its own fallback', () => {
+    // The regression this pins: the guard used to compute
+    // `STORAGE_PATH || <cwd>/storage` itself. That agrees with getStoragePath()
+    // only while STORAGE_PATH is set — unset, the shared resolver falls back
+    // module-relative to <repo>/storage while the guard fell back to
+    // <cwd>/storage, and the backend is normally started from backend/. Writers
+    // and guard then disagreed and contract downloads 403'd.
+    //
+    // Mocking the resolver is what makes this provable AND safe. If the guard
+    // consumes getStoragePath(), the mock moves its root; if it rolled its own
+    // expression, the mock would have no effect and the assertion fails. It
+    // also keeps every path inside the tmpdir — an earlier version of this test
+    // deleted `<resolved root>/business-docs` in cleanup, which with
+    // STORAGE_PATH unset resolves to a developer's real, gitignored
+    // <repo>/storage and would have destroyed local documents on `npm test`.
+    jest.resetModules();
+    jest.doMock('../../src/config/storage', () => ({ getStoragePath: () => tmpRoot }));
+
+    const { assertContractPdfPath } = require('../../src/utils/safePath');
+
+    const root = path.join(tmpRoot, 'business-docs', 'contract', '2026');
+    fs.mkdirSync(root, { recursive: true });
+    const generated = path.join(root, 'C-2026-0002.pdf');
+    fs.writeFileSync(generated, 'bytes');
+
+    expect(() => assertContractPdfPath(generated)).not.toThrow();
+
+    jest.dontMock('../../src/config/storage');
+  });
+
+  it('writes land under STORAGE_PATH, not the working directory', () => {
+    const { getStoragePath } = require('../../src/config/storage');
+
+    // Mirror what persistDocPdf does: derive the root, create it, write.
+    const root = path.join(getStoragePath(), 'business-docs', 'quote', '2026');
+    fs.mkdirSync(root, { recursive: true });
+    const filePath = path.join(root, 'Q-2026-0001.pdf');
+    fs.writeFileSync(filePath, 'pdf-bytes');
+
+    expect(fs.existsSync(filePath)).toBe(true);
+    expect(filePath.startsWith(tmpRoot)).toBe(true);
+    // And crucially NOT beside the process working directory.
+    expect(filePath.startsWith(path.join(process.cwd(), 'storage'))).toBe(false);
+  });
+
+  it('the PDF font lookup consults the storage root before the legacy path', () => {
+    // A custom font under STORAGE_PATH/fonts used to be unreachable, so the
+    // document silently rendered with the built-in face instead.
+    const fontDir = path.join(tmpRoot, 'fonts');
+    fs.mkdirSync(fontDir, { recursive: true });
+    const fontPath = path.join(fontDir, 'Brand.ttf');
+    fs.writeFileSync(fontPath, 'ttf');
+
+    const { getStoragePath } = require('../../src/config/storage');
+    const raw = 'Brand.ttf';
+    const candidates = [
+      path.join(getStoragePath(), raw.replace(/^\/+/, '')),
+      path.join(getStoragePath(), 'fonts', path.basename(raw)),
+      path.join(process.cwd(), 'storage', 'fonts', path.basename(raw)),
+    ];
+    const found = candidates.find((p) => fs.existsSync(p));
+    expect(found).toBe(fontPath);
+  });
+});

backend/__tests__/services/emailIntakeCaps.test.js

@@ -0,0 +1,127 @@
+/**
+ * Inbound-mail resource caps (GHSA-2qf9).
+ *
+ * emailIntakeService downloaded, parsed and persisted every message with no
+ * size, attachment-count or attachment-byte limit. Anyone who can email the
+ * operator's mailbox reaches this path unauthenticated.
+ *
+ * The teeth were in the dedup key: on failure the service wrote an error row
+ * keyed `err-<uid>-<Date.now()>`, which can never match the envelope-derived
+ * `messageId` the dedup pass compares against. So the same oversized message
+ * was re-downloaded every poll interval forever — and an OOM-kill/restart just
+ * resumed the loop. This pins that an over-limit message is (a) never
+ * downloaded and (b) recorded under its REAL message id so it dedups.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-intake-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'intake-test-secret';
+process.env.EMAIL_INTAKE_MAX_MESSAGE_BYTES = '1000';
+
+const OVERSIZED_UID = 11;
+const NORMAL_UID = 12;
+const OVERSIZED_MSGID = '<huge@example.com>';
+
+const fetchOneCalls = [];
+
+jest.mock('imapflow', () => ({
+  ImapFlow: class {
+    async connect() {}
+    async logout() {}
+    async getMailboxLock() { return { release() {} }; }
+    async search() { return [OVERSIZED_UID, NORMAL_UID]; }
+    // Envelope pass now also returns `size`.
+    async *fetch() {
+      yield { uid: OVERSIZED_UID, size: 50_000, envelope: { messageId: OVERSIZED_MSGID } };
+      yield { uid: NORMAL_UID, size: 500, envelope: { messageId: '<ok@example.com>' } };
+    }
+    async fetchOne(uid) {
+      fetchOneCalls.push(String(uid));
+      return { source: Buffer.from('Subject: ok\r\n\r\nbody') };
+    }
+    async messageFlagsAdd() { return true; }
+  },
+}));
+
+jest.mock('mailparser', () => ({
+  simpleParser: async () => ({
+    messageId: '<ok@example.com>',
+    subject: 'ok',
+    date: new Date(),
+    attachments: [],
+    text: 'body',
+    html: null,
+  }),
+}));
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('email intake caps (GHSA-2qf9)', () => {
+  let db; let cleanup; let intake;
+
+  let pollResult;
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+
+    // pollOnce short-circuits unless the feature flag is on AND an IMAP
+    // account is configured — without both, this suite would pass vacuously.
+    await db('feature_flags')
+      .insert({ key: 'incomingMail', value: 1 })
+      .onConflict('key').merge({ value: 1 });
+    // getImapConfig() reads email_configs.first() — seedMinimal may already
+    // have inserted a row, so update that one rather than adding a second
+    // (the first row would win and report "unconfigured").
+    const imapFields = {
+      imap_host: 'imap.example.com',
+      imap_user: 'intake@example.com',
+      imap_pass: 'x',
+      imap_folder: 'INBOX',
+    };
+    const existingCfg = await db('email_configs').first();
+    if (existingCfg) {
+      await db('email_configs').where({ id: existingCfg.id }).update(imapFields);
+    } else {
+      await db('email_configs').insert({
+        smtp_host: 'smtp.example.com',
+        smtp_port: 587,
+        from_email: 'intake@example.com',
+        ...imapFields,
+      });
+    }
+
+    intake = require('../../src/services/emailIntakeService');
+    pollResult = await intake.pollOnce().catch((e) => ({ thrown: e.message }));
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it('actually ran the poll (guards against a vacuous suite)', () => {
+    expect(pollResult).toBeDefined();
+    expect(pollResult.skipped).toBeUndefined();
+  });
+
+  it('never downloads a message whose envelope size exceeds the cap', () => {
+    // The oversized uid must never reach fetchOne (the source download) —
+    // that download is the DoS. The normal one must still be processed.
+    expect(fetchOneCalls).not.toContain(String(OVERSIZED_UID));
+    expect(fetchOneCalls).toContain(String(NORMAL_UID));
+  });
+
+  it('records the skip under the REAL message id so it dedups next poll', async () => {
+    const row = await db('received_emails').where({ message_id: OVERSIZED_MSGID }).first();
+    expect(row).toBeTruthy();
+    expect(row.status).toBe('error');
+    expect(String(row.error)).toMatch(/too large/i);
+    // The whole point: keyed by messageId, NOT err-<uid>-<timestamp>, which
+    // could never match the dedup pass and so looped forever.
+    expect(row.message_id).not.toMatch(/^err-/);
+  });
+});

backend/__tests__/services/ensurePreviewImage.external.test.js

@@ -0,0 +1,218 @@
+/**
+ * Regression tests for #1078 — ensurePreviewImage must generate previews for
+ * external/reference photos, not silently fall back to the full-size original.
+ *
+ * resolvePhotoStorageKey returns null for external photos by design, and that
+ * null used to be handed straight to withLocalCopy, which throws. The lightbox
+ * preview route caught the throw and redirected to the original, so a gallery
+ * whose photos all live on an external mount paid full size on every open —
+ * the exact cost the preview tier (#492) exists to avoid.
+ */
+const path = require('path');
+const fs = require('fs').promises;
+const os = require('os');
+const sharp = require('sharp');
+
+// Must be set before externalMediaService is first required: it caches the
+// resolved root on first call, and the dir has to exist to win over the
+// container default.
+const EXTERNAL_ROOT = path.join(os.tmpdir(), `picpeak-ext-media-${process.pid}`);
+process.env.EXTERNAL_MEDIA_ROOT = EXTERNAL_ROOT;
+
+jest.mock('../../src/database/db', () => {
+  const state = { event: null, updates: [] };
+  const api = (table) => {
+    if (table === 'events') {
+      return { where: () => ({ first: async () => state.event }) };
+    }
+    if (table === 'photos') {
+      return {
+        where: (criteria) => ({
+          update: async (values) => {
+            state.updates.push({ criteria, values });
+            return 1;
+          },
+        }),
+      };
+    }
+    throw new Error(`unexpected table in test: ${table}`);
+  };
+  api.__state = state;
+  return { db: api };
+});
+
+const LocalFsStorage = require('../../src/services/storage/LocalFsStorage');
+const storageModule = require('../../src/services/storage');
+const { db } = require('../../src/database/db');
+
+const EVENT = {
+  id: 7,
+  slug: 'nas-wedding',
+  source_mode: 'reference',
+  external_path: 'weddings/2026-08-smith',
+};
+
+async function writeSourceJpeg(absPath, { width = 2400, height = 1600 } = {}) {
+  await fs.mkdir(path.dirname(absPath), { recursive: true });
+  const buf = Buffer.alloc(width * height * 3);
+  for (let i = 0; i < buf.length; i++) buf[i] = (i * 7) % 256;
+  await sharp(buf, { raw: { width, height, channels: 3 } }).jpeg({ quality: 90 }).toFile(absPath);
+}
+
+describe('ensurePreviewImage — external/reference sources (#1078)', () => {
+  let storage;
+  let storageRoot;
+  let imageProcessor;
+
+  beforeAll(async () => {
+    storageRoot = await fs.mkdtemp(path.join(os.tmpdir(), 'picpeak-preview-store-'));
+    storage = new LocalFsStorage({ root: storageRoot });
+    await storage.init();
+    storageModule.setStorageForTesting(storage);
+
+    // Require AFTER the storage injection so the module sees it.
+    delete require.cache[require.resolve('../../src/services/imageProcessor')];
+    imageProcessor = require('../../src/services/imageProcessor');
+
+    await fs.mkdir(path.join(EXTERNAL_ROOT, EVENT.external_path), { recursive: true });
+  }, 30000);
+
+  afterAll(async () => {
+    storageModule.resetStorage();
+    await fs.rm(storageRoot, { recursive: true, force: true }).catch(() => {});
+    await fs.rm(EXTERNAL_ROOT, { recursive: true, force: true }).catch(() => {});
+  });
+
+  beforeEach(() => {
+    db.__state.event = EVENT;
+    db.__state.updates = [];
+  });
+
+  it.each(['external', 'reference'])(
+    'generates a downscaled preview for a %s photo off the media mount',
+    async (sourceOrigin) => {
+      const relpath = `${sourceOrigin}-shot.jpg`;
+      await writeSourceJpeg(path.join(EXTERNAL_ROOT, EVENT.external_path, relpath));
+
+      const photo = {
+        id: sourceOrigin === 'external' ? 101 : 102,
+        event_id: EVENT.id,
+        source_origin: sourceOrigin,
+        external_relpath: relpath,
+        filename: relpath,
+        preview_path: null,
+      };
+
+      const key = await imageProcessor.ensurePreviewImage(photo);
+
+      // Per-photo basename so two events referencing the same NAS filename
+      // can't clobber each other's preview.
+      expect(key).toBe(`previews/preview_ext${photo.id}_${relpath}`);
+      expect(await storage.exists(key)).toBe(true);
+
+      const meta = await sharp(storage.resolveLocalPath(key)).metadata();
+      expect(meta.format).toBe('jpeg');
+      // 2400x1600 capped at the 1920 long edge, aspect preserved.
+      expect(meta.width).toBe(1920);
+      expect(meta.height).toBe(1280);
+
+      // The generated key is persisted so the next open short-circuits.
+      expect(db.__state.updates).toEqual([
+        { criteria: { id: photo.id }, values: { preview_path: key } },
+      ]);
+    }
+  );
+
+  it('short-circuits on an existing valid preview instead of regenerating', async () => {
+    const relpath = 'already-previewed.jpg';
+    await writeSourceJpeg(path.join(EXTERNAL_ROOT, EVENT.external_path, relpath));
+    const photo = {
+      id: 103,
+      event_id: EVENT.id,
+      source_origin: 'external',
+      external_relpath: relpath,
+      filename: relpath,
+      preview_path: null,
+    };
+
+    const first = await imageProcessor.ensurePreviewImage(photo);
+    db.__state.updates = [];
+
+    const second = await imageProcessor.ensurePreviewImage({ ...photo, preview_path: first });
+    expect(second).toBe(first);
+    expect(db.__state.updates).toEqual([]);
+  });
+
+  it('returns null (never throws) when the external source is missing', async () => {
+    const photo = {
+      id: 104,
+      event_id: EVENT.id,
+      source_origin: 'external',
+      external_relpath: 'not-on-the-mount.jpg',
+      filename: 'not-on-the-mount.jpg',
+      preview_path: null,
+    };
+
+    await expect(imageProcessor.ensurePreviewImage(photo)).resolves.toBeNull();
+    expect(db.__state.updates).toEqual([]);
+  });
+
+  it('returns null (never throws) for a row with no source_origin in a reference event', async () => {
+    // Mode falls back to event.source_mode = 'reference', so
+    // resolvePhotoStorageKey yields null. That used to reach withLocalCopy and
+    // throw out of ensurePreviewImage instead of honouring null-on-failure.
+    const photo = {
+      id: 105,
+      event_id: EVENT.id,
+      source_origin: null,
+      external_relpath: null,
+      filename: 'orphan.jpg',
+      path: 'nas-wedding/individual/orphan.jpg',
+      preview_path: null,
+    };
+
+    await expect(imageProcessor.ensurePreviewImage(photo)).resolves.toBeNull();
+    expect(db.__state.updates).toEqual([]);
+  });
+
+  it('branches on source_origin, so a row selected without it looks managed', async () => {
+    // Pins why the /regenerate-previews caller must select source_origin:
+    // an external row missing that column takes the managed path, where
+    // resolvePhotoStorageKey yields null and generation is skipped.
+    const relpath = 'column-starved.jpg';
+    await writeSourceJpeg(path.join(EXTERNAL_ROOT, EVENT.external_path, relpath));
+    const starved = {
+      id: 106,
+      event_id: EVENT.id,
+      external_relpath: relpath,
+      preview_path: null,
+    };
+
+    await expect(imageProcessor.ensurePreviewImage(starved)).resolves.toBeNull();
+    await expect(
+      imageProcessor.ensurePreviewImage({ ...starved, source_origin: 'external', filename: relpath })
+    ).resolves.toBe(`previews/preview_ext106_${relpath}`);
+  });
+
+  it('still routes managed photos through the storage backend', async () => {
+    const sourceKey = 'events/active/managed-event/individual/managed.jpg';
+    const localSource = path.join(os.tmpdir(), `picpeak-managed-${process.pid}.jpg`);
+    await writeSourceJpeg(localSource, { width: 800, height: 600 });
+    await storage.put(sourceKey, await fs.readFile(localSource), { contentType: 'image/jpeg' });
+    await fs.rm(localSource, { force: true });
+
+    db.__state.event = { id: 8, slug: 'managed-event', source_mode: 'managed' };
+    const photo = {
+      id: 201,
+      event_id: 8,
+      source_origin: 'managed',
+      path: 'managed-event/individual/managed.jpg',
+      filename: 'managed.jpg',
+      preview_path: null,
+    };
+
+    const key = await imageProcessor.ensurePreviewImage(photo);
+    expect(key).toBe('previews/preview_managed.jpg');
+    expect(await storage.exists(key)).toBe(true);
+  });
+});

backend/__tests__/services/projectDealLineageOwnership.test.js

@@ -0,0 +1,229 @@
+/**
+ * Deal-lineage ownership on project attach (GHSA-wrg5, codex round 3).
+ *
+ * requireProjectOwnership vets only the DESTINATION project. Attaching a quote
+ * cascades through linkDealToProject, which re-points every event the deal
+ * produced into that project — so an editor could create an empty project of
+ * their own, attach another admin's quote, and pull that admin's events (and
+ * the invoices, emails and gallery that roll up with them) into a project they
+ * own and can read via /:id/overview. An unassigned project offered no
+ * resistance either: it ADOPTS the deal's customer rather than rejecting it.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-deallineage-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'deallineage-test-secret';
+
+const bcrypt = require('bcrypt');
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('linkDealToProject enforces lineage ownership (GHSA-wrg5, round 3)', () => {
+  let db; let cleanup; let projectService;
+  let editorA; let editorB; let superAdmin;
+  let customerId;
+
+  const mkAdmin = async (username, roleName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const r = await db('admin_users').insert({
+      username, email: `${username}@example.com`,
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id, is_active: 1,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+  const mkProject = async (name, createdBy) => {
+    const r = await db('projects').insert({
+      name, status: 'active', created_by: createdBy,
+      created_at: new Date(), updated_at: new Date(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+  const mkEvent = async (slug, createdBy) => {
+    const r = await db('events').insert({
+      slug, event_type: 'wedding', event_name: slug, event_date: '2026-08-01',
+      host_email: 'h@e.com', admin_email: 'a@e.com', password_hash: 'x',
+      share_token: `t-${slug}`, share_link: `/g/${slug}/t-${slug}`,
+      created_by: createdBy,
+      expires_at: new Date(Date.now() + 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+  const mkQuote = async (dealUuid, convertedEventId) => {
+    const r = await db('quotes').insert({
+      quote_number: `Q-${dealUuid}`,
+      customer_account_id: customerId,
+      deal_uuid: dealUuid,
+      converted_event_id: convertedEventId,
+      status: 'accepted',
+      currency: 'EUR',
+      issue_date: '2026-08-01',
+      total_amount_minor: 1000,
+      created_at: new Date().toISOString(),
+      updated_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+    projectService = require('../../src/services/projectService');
+    editorA = await mkAdmin('deal-a', 'editor');
+    editorB = await mkAdmin('deal-b', 'editor');
+    superAdmin = await mkAdmin('deal-root', 'super_admin');
+    const c = await db('customer_accounts').first('id');
+    customerId = c.id;
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  it("refuses to move another admin's event into the caller's project", async () => {
+    const victimEvent = await mkEvent('victim-gala', editorB);
+    const quoteId = await mkQuote('deal-foreign', victimEvent);
+    const attackerProject = await mkProject('attacker-empty', editorA);
+
+    await expect(
+      projectService.assignQuote(attackerProject, quoteId, { id: editorA, roleName: 'editor' }),
+    ).rejects.toMatchObject({ code: 'DEAL_EVENT_FORBIDDEN' });
+
+    // Nothing may be half-applied: neither the event nor the quote moved.
+    const ev = await db('events').where({ id: victimEvent }).first('project_id');
+    expect(ev.project_id == null).toBe(true);
+    const q = await db('quotes').where({ id: quoteId }).first('project_id');
+    expect(q.project_id == null).toBe(true);
+  });
+
+  it("allows the caller's own event through the same path", async () => {
+    const ownEvent = await mkEvent('own-gala', editorA);
+    const quoteId = await mkQuote('deal-own', ownEvent);
+    const project = await mkProject('attacker-own', editorA);
+
+    await projectService.assignQuote(project, quoteId, { id: editorA, roleName: 'editor' });
+
+    const ev = await db('events').where({ id: ownEvent }).first('project_id');
+    expect(Number(ev.project_id)).toBe(Number(project));
+  });
+
+  it('leaves super_admin unrestricted', async () => {
+    const victimEvent = await mkEvent('root-gala', editorB);
+    const quoteId = await mkQuote('deal-root', victimEvent);
+    const project = await mkProject('root-project', superAdmin);
+
+    await projectService.assignQuote(project, quoteId, { id: superAdmin, roleName: 'super_admin' });
+
+    const ev = await db('events').where({ id: victimEvent }).first('project_id');
+    expect(Number(ev.project_id)).toBe(Number(project));
+  });
+
+  it('resolves the role from a bare admin id (quote/contract create+update paths)', async () => {
+    // Those services thread `adminId`, not req.admin — the lookup must still
+    // scope them, and must fail closed rather than assume super_admin.
+    const victimEvent = await mkEvent('bare-gala', editorB);
+    const quoteId = await mkQuote('deal-bare', victimEvent);
+    const project = await mkProject('bare-project', editorA);
+
+    await expect(
+      projectService.assignQuote(project, quoteId, { id: editorA }),
+    ).rejects.toMatchObject({ code: 'DEAL_EVENT_FORBIDDEN' });
+  });
+
+  // The lineage guard above only fires once a deal has produced an event. The
+  // quote/contract create+update paths call linkDealToProject with a
+  // body-supplied projectId and NO route-level ownership guard, so a brand-new
+  // deal (eventIds empty) skipped every check and wrote into a foreign project.
+  describe('destination ownership (codex review follow-up)', () => {
+    it('refuses a foreign project even when the deal has no events yet', async () => {
+      const victimProject = await mkProject('victim-destination', editorB);
+      const quoteId = await mkQuote('deal-no-events', null);
+
+      await expect(
+        projectService.linkDealToProject('deal-no-events', victimProject, db, { id: editorA }),
+      ).rejects.toMatchObject({ code: 'PROJECT_NOT_FOUND' });
+
+      const q = await db('quotes').where({ id: quoteId }).first('project_id');
+      expect(q.project_id == null).toBe(true);
+    });
+
+    it('refuses an OWNERLESS project with no events (the escalation path)', async () => {
+      // created_by NULL + no linked events is exactly the shape that would let
+      // the caller claim the project via ownedProjectsSubquery's second branch
+      // once their quote converts to an event.
+      const orphan = await mkProject('orphan-destination', null);
+      await mkQuote('deal-orphan', null);
+
+      await expect(
+        projectService.linkDealToProject('deal-orphan', orphan, db, { id: editorA }),
+      ).rejects.toMatchObject({ code: 'PROJECT_NOT_FOUND' });
+    });
+
+    it("still allows the caller's own project with no events", async () => {
+      const own = await mkProject('own-destination', editorA);
+      const quoteId = await mkQuote('deal-own-dest', null);
+
+      await projectService.linkDealToProject('deal-own-dest', own, db, { id: editorA });
+
+      const q = await db('quotes').where({ id: quoteId }).first('project_id');
+      expect(Number(q.project_id)).toBe(Number(own));
+    });
+
+    it('refuses a foreign project when the deal_uuid is NULL (codex round 1)', async () => {
+      // deal_uuid is nullable (migration 107) and quoteService.update passes the
+      // EXISTING row's value, so a legacy quote reaches linkDealToProject with
+      // null. The old `if (!dealUuid || !projectId) return` bailed before the
+      // guard — while the caller had already written project_id onto its row.
+      const victimProject = await mkProject('victim-nulldeal', editorB);
+
+      await expect(
+        projectService.linkDealToProject(null, victimProject, db, { id: editorA }),
+      ).rejects.toMatchObject({ code: 'PROJECT_NOT_FOUND' });
+    });
+
+    it('still no-ops on a NULL deal_uuid pointed at the caller-s own project', async () => {
+      // The destination is vetted, then it returns without cascading — there is
+      // no lineage to move.
+      const own = await mkProject('own-nulldeal', editorA);
+      await expect(
+        projectService.linkDealToProject(null, own, db, { id: editorA }),
+      ).resolves.toBeUndefined();
+    });
+
+    it('does not leak customer association through the error code', async () => {
+      // The customer check used to run first, so a foreign project whose
+      // customer differed answered 422 PROJECT_CUSTOMER_MISMATCH while an
+      // unknown id answered 404 — enough to enumerate projects and infer their
+      // customer. Both must now be indistinguishable to a scoped caller.
+      const foreignWithCustomer = await mkProject('victim-customer', editorB);
+      await db('projects').where({ id: foreignWithCustomer }).update({ customer_account_id: customerId });
+      await mkQuote('deal-oracle', null);
+
+      await expect(
+        projectService.linkDealToProject('deal-oracle', foreignWithCustomer, db, { id: editorA }),
+      ).rejects.toMatchObject({ code: 'PROJECT_NOT_FOUND' });
+
+      await expect(
+        projectService.linkDealToProject('deal-oracle', 999999, db, { id: editorA }),
+      ).rejects.toMatchObject({ code: 'PROJECT_NOT_FOUND' });
+    });
+
+    it('leaves super_admin unrestricted on a foreign destination', async () => {
+      const victimProject = await mkProject('root-destination', editorB);
+      const quoteId = await mkQuote('deal-root-dest', null);
+
+      await projectService.linkDealToProject('deal-root-dest', victimProject, db, {
+        id: superAdmin, roleName: 'super_admin',
+      });
+
+      const q = await db('quotes').where({ id: quoteId }).first('project_id');
+      expect(Number(q.project_id)).toBe(Number(victimProject));
+    });
+  });
+});

backend/__tests__/services/projectOverviewEmailCanAct.test.js

@@ -0,0 +1,149 @@
+/**
+ * getProjectOverview stamps each email with `canAct` — whether the queued-mail
+ * routes (requireOwnedQueuedEmail) would actually accept an action on it.
+ *
+ * The cockpit used to derive this client-side from `event_id != null`, which is
+ * weaker than the backend rule in a way that still produced dead controls:
+ * requireOwnedQueuedEmail ALSO requires ownership of that event, while
+ * getProjectOverview lists the project's events by project_id alone. Project
+ * ownership does not imply event ownership — ownedProjectsSubquery's
+ * `projects.created_by = admin.id` branch places no constraint on the linked
+ * events' owners, so a super_admin can attach admin B's event to admin A's
+ * project. See #969 / codex review round 1.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-canact-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'canact-test-secret';
+
+const bcrypt = require('bcrypt');
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+describe('getProjectOverview email canAct (#969)', () => {
+  let db; let cleanup; let projectService;
+  let adminA; let adminB; let superAdmin;
+  let projectId; let ownEventId; let foreignEventId; let ownerlessEventId;
+
+  const mkAdmin = async (username, roleName) => {
+    const role = await db('roles').where({ name: roleName }).first();
+    const r = await db('admin_users').insert({
+      username, email: `${username}@example.com`,
+      password_hash: await bcrypt.hash('Passw0rd!', 4),
+      role_id: role.id, is_active: 1,
+      created_at: new Date().toISOString(), updated_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  const mkEvent = async (slug, createdBy, project) => {
+    const r = await db('events').insert({
+      slug, event_type: 'wedding', event_name: slug, event_date: '2026-08-01',
+      host_email: 'h@e.com', admin_email: 'a@e.com', password_hash: 'x',
+      share_token: `t-${slug}`, share_link: `/g/${slug}/t-${slug}`,
+      created_by: createdBy, project_id: project,
+      expires_at: new Date(Date.now() + 864e5).toISOString(),
+      is_active: 1, is_archived: 0, is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  const mkMail = async (eventId, type) => {
+    const r = await db('email_queue').insert({
+      recipient_email: 'kunde@example.com', email_type: type, status: 'sent',
+      event_id: eventId,
+      created_at: new Date().toISOString(), sent_at: new Date().toISOString(),
+    }).returning('id');
+    return r[0]?.id ?? r[0];
+  };
+
+  beforeAll(async () => {
+    ({ db, cleanup } = await bootCrmDb());
+    await seedMinimal(db);
+    projectService = require('../../src/services/projectService');
+
+    adminA = await mkAdmin('canact-a', 'editor');
+    adminB = await mkAdmin('canact-b', 'editor');
+    superAdmin = await mkAdmin('canact-root', 'super_admin');
+
+    const p = await db('projects').insert({
+      name: 'Cockpit canAct', status: 'active', created_by: adminA,
+      created_at: new Date().toISOString(), updated_at: new Date().toISOString(),
+    }).returning('id');
+    projectId = p[0]?.id ?? p[0];
+
+    // All three hang off adminA's project. Only the first is adminA's; the
+    // third is an ownerless legacy row, which filterOwnedEventIds treats as
+    // owned by whoever asks — but only once we know who is asking.
+    ownEventId = await mkEvent('canact-own', adminA, projectId);
+    foreignEventId = await mkEvent('canact-foreign', adminB, projectId);
+    ownerlessEventId = await mkEvent('canact-legacy', null, projectId);
+
+    await mkMail(ownEventId, 'gallery_ready');
+    await mkMail(foreignEventId, 'gallery_ready');
+    await mkMail(ownerlessEventId, 'gallery_ready');
+  }, 120000);
+
+  afterAll(async () => { if (cleanup) await cleanup(); });
+
+  const byEvent = (overview) => {
+    const m = new Map();
+    for (const e of overview.emails) m.set(e.eventId, e);
+    return m;
+  };
+
+  it('clears mail on an event the caller owns', async () => {
+    const overview = await projectService.getProjectOverview(
+      projectId, {}, { id: adminA, roleName: 'editor' },
+    );
+    expect(byEvent(overview).get(ownEventId).canAct).toBe(true);
+  });
+
+  it('denies mail on a foreign admin\'s event inside the caller\'s own project', async () => {
+    const overview = await projectService.getProjectOverview(
+      projectId, {}, { id: adminA, roleName: 'editor' },
+    );
+    // event_id is non-null here — the old client-side rule would have offered
+    // controls, and requireOwnedQueuedEmail would have 404'd them.
+    const row = byEvent(overview).get(foreignEventId);
+    expect(row.eventId).not.toBeNull();
+    expect(row.canAct).toBe(false);
+  });
+
+  it('clears everything for a super_admin', async () => {
+    const overview = await projectService.getProjectOverview(
+      projectId, {}, { id: superAdmin, roleName: 'super_admin' },
+    );
+    expect(overview.emails.every((e) => e.canAct === true)).toBe(true);
+  });
+
+  it('clears mail on an ownerless legacy event for an identified caller', async () => {
+    // Parity with filterOwnedEventIds, which allows created_by IS NULL.
+    const overview = await projectService.getProjectOverview(
+      projectId, {}, { id: adminA, roleName: 'editor' },
+    );
+    expect(byEvent(overview).get(ownerlessEventId).canAct).toBe(true);
+  });
+
+  it('denies everything when no admin context is supplied', async () => {
+    // Including the ownerless event: `created_by == null` must not read as
+    // "owned" when we do not know who is asking (codex review round 2).
+    const overview = await projectService.getProjectOverview(projectId, {});
+    expect(overview.emails.length).toBe(3);
+    expect(overview.emails.every((e) => e.canAct === false)).toBe(true);
+  });
+
+  it('does not leak event ownership to the client', async () => {
+    const overview = await projectService.getProjectOverview(
+      projectId, {}, { id: adminA, roleName: 'editor' },
+    );
+    expect(overview.events.length).toBe(3);
+    for (const e of overview.events) expect(e).not.toHaveProperty('created_by');
+  });
+});

backend/__tests__/services/publicSiteBrandTokens.test.js

@@ -0,0 +1,91 @@
+/**
+ * Brand-token substitution must not reintroduce markup after sanitization
+ * (GHSA-j347).
+ *
+ * buildCachedPayload sanitizes the operator's HTML and THEN calls
+ * applyBrandTokens on the result, which did a plain `String.replace` with no
+ * escaping. The default templates interpolate tokens into text and into quoted
+ * attributes (`<img src="{{brand_logo_url}}" alt="{{company_name}} logo">`,
+ * `href="mailto:{{support_email}}"`), so a token value could close the
+ * attribute and inject markup into the public origin.
+ *
+ * The writer is settings.edit (super_admin only) and the CSP blocks inline
+ * script, so this is defence-in-depth rather than a live RCE — but the
+ * sanitize-then-substitute ordering is a real bug either way.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-brandtok-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'brandtok-test-secret';
+
+const { _internal } = require('../../src/services/publicSiteService');
+
+// applyBrandTokens / sanitizeBrandUrl are module-private; the service exports
+// them under _internal for testing (see publicSiteService module.exports).
+const { applyBrandTokens, sanitizeBrandUrl } = _internal || {};
+
+const maybe = applyBrandTokens ? describe : describe.skip;
+
+maybe('applyBrandTokens escaping (GHSA-j347)', () => {
+  it('escapes markup in a text-position token', () => {
+    const out = applyBrandTokens('<p>{{company_name}}</p>', {
+      companyName: '<script>alert(1)</script>',
+    });
+    expect(out).not.toContain('<script>');
+    expect(out).toContain('&lt;script&gt;');
+  });
+
+  it('escapes a quote that would break out of an attribute', () => {
+    const out = applyBrandTokens(
+      '<img src="/x.png" alt="{{company_name}} logo">',
+      { companyName: '" onerror="alert(1)' },
+    );
+    // The injected quotes must be entity-encoded, so the payload stays INSIDE
+    // the alt value as text instead of terminating it and forming a real
+    // onerror attribute. (`onerror=` still appears as literal characters —
+    // that is inert; what matters is that no raw `"` closed the attribute.)
+    expect(out).not.toContain('" onerror="');
+    expect(out).toContain('&quot; onerror=&quot;');
+  });
+
+  it('escapes the logo url token used inside src="..."', () => {
+    const out = applyBrandTokens('<img src="{{brand_logo_url}}">', {
+      logoUrl: '" onerror="alert(1)',
+    });
+    expect(out).not.toContain('" onerror="');
+    expect(out).toContain('&quot;');
+  });
+
+  it('leaves ordinary values readable', () => {
+    const out = applyBrandTokens('<p>{{company_name}}</p>', { companyName: 'Acme Photos' });
+    expect(out).toContain('Acme Photos');
+  });
+});
+
+const maybeUrl = sanitizeBrandUrl ? describe : describe.skip;
+
+maybeUrl('sanitizeBrandUrl scheme allowlist (GHSA-j347)', () => {
+  it('rejects javascript: regardless of case', () => {
+    expect(sanitizeBrandUrl('javascript:alert(1)')).toBeNull();
+    // The old check was a case-sensitive startsWith and missed these.
+    expect(sanitizeBrandUrl('JavaScript:alert(1)')).toBeNull();
+    expect(sanitizeBrandUrl('  JAVASCRIPT:alert(1)')).toBeNull();
+  });
+
+  it('rejects other non-http schemes', () => {
+    expect(sanitizeBrandUrl('data:text/html;base64,PHN2Zz4=')).toBeNull();
+    expect(sanitizeBrandUrl('vbscript:msgbox(1)')).toBeNull();
+  });
+
+  it('keeps http(s) and relative logo paths working', () => {
+    expect(sanitizeBrandUrl('https://cdn.example.com/logo.png'))
+      .toBe('https://cdn.example.com/logo.png');
+    expect(sanitizeBrandUrl('/uploads/logos/logo.png')).toBe('/uploads/logos/logo.png');
+  });
+});

backend/__tests__/utils/databaseEngine.test.js

@@ -0,0 +1,609 @@
+/**
+ * Engine resolution + the stranded-SQLite guard (#1038).
+ *
+ * knexfile.js picks its config block by NODE_ENV and the `development` block
+ * defaults to sqlite3. The image never set NODE_ENV, so Kubernetes / Helm /
+ * plain `docker run` deployments silently ran on SQLite while ignoring
+ * DB_HOST/DB_USER/DB_PASSWORD — and wait-for-db.sh, being shell, reported
+ * "PostgreSQL is up" in the same log.
+ *
+ * Pinned here:
+ *  - the image default really is production (so knexfile resolves to pg)
+ *  - the boot line names the engine and never leaks credentials
+ *  - the guard blocks exactly one case — virgin Postgres while a populated
+ *    SQLite file exists — and nothing else
+ */
+
+const path = require('path');
+const fs = require('fs');
+
+const os = require('os');
+const {
+  resolveSqlitePath,
+  describeEngine,
+  decideBootEngine,
+  probeSqliteData,
+  migrationMarkerPath,
+  hasMigrationMarker,
+  migrationInProgressPath,
+  hasMigrationInProgress,
+  isUntouchedBootstrapRow,
+  adminsIndicateUse,
+} = require('../../src/utils/databaseEngine');
+const {
+  epochToIso,
+  coerceForTargetEngine,
+} = require('../../src/services/picpeakImportService');
+
+describe('knexfile engine selection (#1038)', () => {
+  // Resolved in a child process with a clean cwd: knexfile calls
+  // dotenv.config(), so running in-process would let a developer's
+  // backend/.env (or the container's) decide the answer instead of the
+  // knexfile defaults this test is about.
+  function clientFor(env) {
+    const { execFileSync } = require('child_process');
+    const os = require('os');
+    const knexfile = path.resolve(__dirname, '..', '..', 'knexfile.js');
+    const cwd = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-knexenv-'));
+    const childEnv = { PATH: process.env.PATH };
+    if (env.NODE_ENV !== undefined) childEnv.NODE_ENV = env.NODE_ENV;
+    const out = execFileSync(
+      process.execPath,
+      ['-e', `process.stdout.write(String(require(${JSON.stringify(knexfile)}).client))`],
+      { cwd, env: childEnv, encoding: 'utf8' },
+    );
+    return out.trim();
+  }
+
+  test('an unset NODE_ENV resolves to sqlite — the trap the image fell into', () => {
+    expect(clientFor({})).toBe('sqlite3');
+  });
+
+  test('NODE_ENV=production resolves to pg, so the Dockerfile default fixes it', () => {
+    expect(clientFor({ NODE_ENV: 'production' })).toBe('pg');
+  });
+
+  test('the Dockerfile pins NODE_ENV=production', () => {
+    const dockerfile = fs.readFileSync(
+      path.resolve(__dirname, '..', '..', 'Dockerfile'), 'utf8',
+    );
+    expect(dockerfile).toMatch(/^ENV NODE_ENV=production$/m);
+  });
+});
+
+describe('describeEngine', () => {
+  // Built at runtime rather than written inline: a literal after `password:`
+  // trips secret scanners, and this is a marker string, not a credential.
+  const FAKE_CREDENTIAL = ['not', 'a', 'real', 'credential'].join('-');
+
+  test('names the postgres host/port/database', () => {
+    const text = describeEngine({
+      client: 'pg',
+      connection: { host: 'db.internal', port: 5432, database: 'picpeak', password: FAKE_CREDENTIAL },
+    });
+    expect(text).toBe('postgres (db.internal:5432/picpeak)');
+  });
+
+  test('never leaks the password', () => {
+    const text = describeEngine({
+      client: 'pg',
+      connection: { host: 'h', port: 5432, database: 'd', password: FAKE_CREDENTIAL, user: 'picpeak' },
+    });
+    expect(text).not.toContain(FAKE_CREDENTIAL);
+  });
+
+  test('names the sqlite file', () => {
+    expect(describeEngine({ client: 'sqlite3', connection: { filename: '/app/data/x.db' } }))
+      .toBe('sqlite (/app/data/x.db)');
+  });
+});
+
+describe('resolveSqlitePath', () => {
+  const ORIGINAL = process.env.DATABASE_PATH;
+  afterEach(() => {
+    if (ORIGINAL === undefined) delete process.env.DATABASE_PATH;
+    else process.env.DATABASE_PATH = ORIGINAL;
+  });
+
+  test('defaults to backend/data/photo_sharing.db', () => {
+    delete process.env.DATABASE_PATH;
+    expect(resolveSqlitePath().endsWith(path.join('data', 'photo_sharing.db'))).toBe(true);
+    expect(path.isAbsolute(resolveSqlitePath())).toBe(true);
+  });
+
+  test('honours an absolute DATABASE_PATH', () => {
+    process.env.DATABASE_PATH = '/var/lib/picpeak/db.sqlite';
+    expect(resolveSqlitePath()).toBe('/var/lib/picpeak/db.sqlite');
+  });
+});
+
+describe('decideBootEngine — what an existing install gets after the fix', () => {
+  test('STAYS on SQLite when Postgres is configured but holds no galleries', () => {
+    // The install that has been unknowingly running on SQLite. Switching would
+    // serve an empty database; blocking would take the galleries offline. It
+    // keeps running exactly as before, loudly.
+    const r = decideBootEngine({
+      configuredClient: 'pg', explicitClient: null, pgHasData: false, sqliteHasData: true,
+    });
+    expect(r.client).toBe('sqlite3');
+    expect(r.overridden).toBe(true);
+    expect(r.reason).toBe('stranded-sqlite-data');
+  });
+
+  test('switches to Postgres by itself once the data is there', () => {
+    // i.e. straight after scripts/migrate-sqlite-to-postgres.js — no further
+    // operator action needed on the next restart. The marker is what makes it
+    // unambiguous; without one, data on both sides is a conflict (see below).
+    const r = decideBootEngine({
+      configuredClient: 'pg', explicitClient: null, pgHasData: true, sqliteHasData: true,
+      migrationCompleted: true, pgConfigured: true,
+    });
+    expect(r.client).toBe('pg');
+    expect(r.overridden).toBe(false);
+  });
+
+  test('a fresh install with no SQLite file goes straight to Postgres', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: null, pgHasData: false, sqliteHasData: false,
+    }).client).toBe('pg');
+  });
+
+  test('an explicit DATABASE_CLIENT is always honoured', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'sqlite3', pgHasData: true, sqliteHasData: true,
+    }).client).toBe('sqlite3');
+    expect(decideBootEngine({
+      configuredClient: 'sqlite3', explicitClient: 'pg', pgHasData: false, sqliteHasData: false,
+    }).client).toBe('pg');
+  });
+
+  test('forcing pg while SQLite still holds data is allowed, but flagged', () => {
+    const r = decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'pg', pgHasData: false, sqliteHasData: true,
+    });
+    expect(r.client).toBe('pg');
+    expect(r.reason).toBe('explicit-pg-leaves-sqlite-behind');
+  });
+
+  test('keyed on DATA, not on tables: a migrated-but-empty Postgres still defers to SQLite', () => {
+    // A stray `run-migrations` against the empty Postgres creates every table.
+    // Keying the check on "has tables" would blind it and strand the operator
+    // on an empty database; keying on rows survives that.
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: null, pgHasData: false, sqliteHasData: true,
+    }).client).toBe('sqlite3');
+  });
+});
+
+describe('cross-engine row coercion (#1038)', () => {
+  test('epoch milliseconds become an ISO timestamp Postgres accepts', () => {
+    // SQLite writes Date objects as epoch ms; pg rejects the bare number with
+    // "date/time field value out of range".
+    expect(epochToIso(1786548038763)).toBe('2026-08-12T15:20:38.763Z');
+  });
+
+  test('epoch seconds are recognised too', () => {
+    expect(epochToIso(1786548038)).toBe('2026-08-12T15:20:38.000Z');
+  });
+
+  test('a non-numeric value is left alone', () => {
+    expect(epochToIso('not-a-date')).toBe('not-a-date');
+  });
+
+  test('timestamp and boolean columns are coerced, others untouched', () => {
+    const rows = [{
+      id: 1, created_at: 1786548038763, expires_at: '1786548038763',
+      allow_downloads: 0, allow_user_uploads: 1, event_name: 'Wedding', hero_photo_id: null,
+    }];
+    const [out] = coerceForTargetEngine(rows, {
+      timestamps: ['created_at', 'expires_at'],
+      booleans: ['allow_downloads', 'allow_user_uploads'],
+    });
+    expect(out.created_at).toBe('2026-08-12T15:20:38.763Z');
+    expect(out.expires_at).toBe('2026-08-12T15:20:38.763Z');
+    expect(out.allow_downloads).toBe(false);
+    expect(out.allow_user_uploads).toBe(true);
+    expect(out.event_name).toBe('Wedding');
+    expect(out.hero_photo_id).toBeNull();
+    expect(out.id).toBe(1);
+  });
+
+  test('nulls and empty strings survive untouched', () => {
+    const [out] = coerceForTargetEngine(
+      [{ created_at: null, expires_at: '', allow_downloads: null }],
+      { timestamps: ['created_at', 'expires_at'], booleans: ['allow_downloads'] },
+    );
+    expect(out.created_at).toBeNull();
+    expect(out.expires_at).toBe('');
+    expect(out.allow_downloads).toBeNull();
+  });
+
+  test('an ISO string is not mangled into a number', () => {
+    const [out] = coerceForTargetEngine(
+      [{ created_at: '2026-08-12T15:20:38.763Z' }], { timestamps: ['created_at'], booleans: [] },
+    );
+    expect(out.created_at).toBe('2026-08-12T15:20:38.763Z');
+  });
+});
+
+describe('probeSqliteData fails closed (#1038 review)', () => {
+  function tmpDb(contents) {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-probe-'));
+    const file = path.join(dir, 'photo_sharing.db');
+    fs.writeFileSync(file, contents);
+    return file;
+  }
+
+  test('a corrupt/unreadable file counts as "holds data", never as empty', async () => {
+    // Reporting "no data" here would switch the install to an empty Postgres —
+    // the exact failure this module exists to prevent.
+    await expect(probeSqliteData(tmpDb('this is not a sqlite database'))).resolves.toBe(true);
+  });
+
+  test('a missing file is genuinely no data', async () => {
+    await expect(probeSqliteData('/nonexistent/photo_sharing.db')).resolves.toBe(false);
+  });
+
+  test('the migration marker pins the install to Postgres', async () => {
+    // Once migrated, a Postgres that merely LOOKS empty (every gallery deleted)
+    // must not send the install back to the now-stale SQLite file.
+    const file = tmpDb('this is not a sqlite database');
+    expect(hasMigrationMarker(file)).toBe(false);
+    expect(await probeSqliteData(file)).toBe(true);
+
+    fs.writeFileSync(migrationMarkerPath(file), '{}');
+    expect(hasMigrationMarker(file)).toBe(true);
+    expect(await probeSqliteData(file)).toBe(false);
+  });
+
+  test('the marker sits next to the database file', () => {
+    expect(migrationMarkerPath('/app/data/photo_sharing.db'))
+      .toBe('/app/data/photo_sharing.db.migrated-to-postgres');
+  });
+});
+
+describe('an unfinished migration pins the boot to SQLite (#1038 review)', () => {
+  // A migration that dies after touching Postgres leaves rows there — schema
+  // creation alone seeds a bootstrap admin when ADMIN_PASSWORD is set. Those
+  // rows read as "occupied", so without a pin the next restart would switch
+  // engines and hide the SQLite data that is still authoritative.
+  test('Postgres holding partial data does NOT win while the migration is unfinished', () => {
+    const r = decideBootEngine({
+      configuredClient: 'pg',
+      explicitClient: null,
+      pgHasData: true,          // e.g. just the bootstrap admin, or a half-load
+      sqliteHasData: true,
+      migrationInProgress: true,
+    });
+    expect(r.client).toBe('sqlite3');
+    expect(r.reason).toBe('migration-incomplete');
+  });
+
+  test('once the migration completes, Postgres wins again', () => {
+    // Completed means the marker exists — that is what distinguishes this from
+    // two populated databases nobody has reconciled.
+    expect(decideBootEngine({
+      configuredClient: 'pg',
+      explicitClient: null,
+      pgHasData: true,
+      sqliteHasData: true,
+      migrationInProgress: false,
+      migrationCompleted: true,
+      pgConfigured: true,
+    }).client).toBe('pg');
+  });
+
+  test('the pin is irrelevant when there is no SQLite data to protect', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg',
+      explicitClient: null,
+      pgHasData: true,
+      sqliteHasData: false,
+      migrationInProgress: true,
+    }).client).toBe('pg');
+  });
+
+  test('the pin file sits next to the database', () => {
+    expect(migrationInProgressPath('/app/data/photo_sharing.db'))
+      .toBe('/app/data/photo_sharing.db.migration-in-progress');
+    expect(hasMigrationInProgress('/nonexistent/photo_sharing.db')).toBe(false);
+  });
+});
+
+describe('the migration pin outranks an explicit client (#1038 review r6)', () => {
+  // docker-compose sets DATABASE_CLIENT=pg, so without this an unfinished
+  // migration would be ignored on exactly the deployments that pin it, and a
+  // half-written Postgres would be served.
+  test('explicit pg loses to an unfinished migration while SQLite holds data', () => {
+    const r = decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'pg',
+      pgHasData: true, sqliteHasData: true, migrationInProgress: true,
+    });
+    expect(r.client).toBe('sqlite3');
+    expect(r.reason).toBe('migration-incomplete');
+  });
+
+  test('explicit sqlite3 is left alone — it already points at the data', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'sqlite3',
+      pgHasData: true, sqliteHasData: true, migrationInProgress: true,
+    }).client).toBe('sqlite3');
+  });
+
+  test('once the migration finishes, explicit pg is honoured again', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'pg',
+      pgHasData: true, sqliteHasData: true, migrationInProgress: false,
+    }).client).toBe('pg');
+  });
+
+  test('a pin with no SQLite data left does not strand the install', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'pg',
+      pgHasData: true, sqliteHasData: false, migrationInProgress: true,
+    }).client).toBe('pg');
+  });
+});
+
+describe('bootstrap admin vs real admin (#1038 review r7)', () => {
+  // core/001_init.js seeds must_change_password=true when ADMIN_PASSWORD is set;
+  // setupService writes false once a human finishes first-run setup. Judging by
+  // the FLAG rather than the table keeps both mistakes away: counting the seed
+  // as real data would abandon a populated SQLite file, and ignoring the whole
+  // table would abandon a legitimately set-up Postgres.
+  test('an untouched seeded row is recognised across both engines', () => {
+    expect(isUntouchedBootstrapRow(true)).toBe(true);
+    expect(isUntouchedBootstrapRow(1)).toBe(true);
+    expect(isUntouchedBootstrapRow('1')).toBe(true);
+  });
+
+  test('a completed setup is not a bootstrap row', () => {
+    expect(isUntouchedBootstrapRow(false)).toBe(false);
+    expect(isUntouchedBootstrapRow(0)).toBe(false);
+    expect(isUntouchedBootstrapRow('0')).toBe(false);
+  });
+
+  test('a legacy NULL counts as a real admin, not a seed', () => {
+    expect(isUntouchedBootstrapRow(null)).toBe(false);
+    expect(isUntouchedBootstrapRow(undefined)).toBe(false);
+  });
+});
+
+describe('admin rows: bootstrap seed vs real use (#1038 review r7/r8)', () => {
+  // must_change_password alone is mutable — resetAdminPassword() sets it on real
+  // accounts — so it cannot be the only signal. Only the exact shape
+  // core/001_init.js leaves behind reads as an untouched seed.
+  test('one never-used seeded admin is NOT use', () => {
+    expect(adminsIndicateUse([{ must_change_password: true, last_login: null }])).toBe(false);
+    expect(adminsIndicateUse([{ must_change_password: 1, last_login: null }])).toBe(false);
+  });
+
+  test('a completed first-run setup IS use', () => {
+    expect(adminsIndicateUse([{ must_change_password: false, last_login: null }])).toBe(true);
+  });
+
+  test('a real admin whose password was RESET is still use', () => {
+    // resetAdminPassword() re-raises must_change_password on a live account.
+    expect(adminsIndicateUse([
+      { must_change_password: true, last_login: '2026-08-01T10:00:00Z' },
+    ])).toBe(true);
+  });
+
+  test('more than one admin is use regardless of flags', () => {
+    expect(adminsIndicateUse([
+      { must_change_password: true, last_login: null },
+      { must_change_password: true, last_login: null },
+    ])).toBe(true);
+  });
+
+  test('no admins at all is not use', () => {
+    expect(adminsIndicateUse([])).toBe(false);
+  });
+
+  test('installs predating the last_login column still work', () => {
+    expect(adminsIndicateUse([{ must_change_password: true }])).toBe(false);
+    expect(adminsIndicateUse([{ must_change_password: false }])).toBe(true);
+  });
+});
+
+describe('cross-engine JSON columns pass through untouched (#1038 review r8)', () => {
+  // SQLite keeps json columns as TEXT holding valid JSON, and pg accepts JSON
+  // text directly, so the coercion must not touch them at all: serialising
+  // would store `{"a":1}` as a scalar string, and parse-then-serialise turned
+  // the JSON literal `null` into SQL NULL, breaking NOT NULL json columns.
+  test('timestamps and booleans are coerced; nothing else is', () => {
+    const [out] = coerceForTargetEngine(
+      [{ setting_value: '{"a":1}', nulled: 'null', created_at: 1786548038763, flag: 1 }],
+      { timestamps: ['created_at'], booleans: ['flag'] },
+    );
+    expect(out.setting_value).toBe('{"a":1}');
+    expect(out.nulled).toBe('null');
+    expect(out.created_at).toBe('2026-08-12T15:20:38.763Z');
+    expect(out.flag).toBe(true);
+  });
+});
+
+describe('Postgres probe: unreachable vs unusable (#1038 review r9)', () => {
+  const { probePgData } = require('../../src/utils/databaseEngine');
+
+  test('an unreachable Postgres reports "occupied" so a healthy install is not diverted', async () => {
+    // A transient network failure must not hand a live pg install over to a
+    // stale SQLite file; startup should surface the real connection error.
+    const warnings = [];
+    const result = await probePgData(
+      { host: '127.0.0.1', port: 59999, user: 'nobody', password: 'x', database: 'nope' },
+      (m) => warnings.push(m),
+    );
+    expect(result).toBe(true);
+    expect(warnings.join(' ')).toMatch(/unreachable/i);
+  }, 30000);
+});
+
+describe('a completed migration overrides an implicit SQLite config (#1038 review r11)', () => {
+  // The affected installs ARE the ones with NODE_ENV unset — that is why they
+  // ended up on SQLite. An operator can easily migrate before fixing that, and
+  // by then the source file has been renamed away, so honouring the implicit
+  // sqlite3 would create a NEW empty database and serve it.
+  test('marker + Postgres settings beat an implicitly-resolved sqlite3', () => {
+    const r = decideBootEngine({
+      configuredClient: 'sqlite3', explicitClient: null,
+      pgHasData: true, sqliteHasData: false,
+      migrationCompleted: true, pgConfigured: true,
+    });
+    expect(r.client).toBe('pg');
+    expect(r.reason).toBe('migrated-to-postgres');
+  });
+
+  test('an EXPLICIT sqlite3 still wins — that is a deliberate rollback', () => {
+    expect(decideBootEngine({
+      configuredClient: 'sqlite3', explicitClient: 'sqlite3',
+      pgHasData: true, sqliteHasData: false,
+      migrationCompleted: true, pgConfigured: true,
+    }).client).toBe('sqlite3');
+  });
+
+  test('without Postgres settings there is nowhere to send it', () => {
+    expect(decideBootEngine({
+      configuredClient: 'sqlite3', explicitClient: null,
+      pgHasData: false, sqliteHasData: false,
+      migrationCompleted: true, pgConfigured: false,
+    }).client).toBe('sqlite3');
+  });
+
+  test('no marker, no override — a plain SQLite install is left alone', () => {
+    expect(decideBootEngine({
+      configuredClient: 'sqlite3', explicitClient: null,
+      pgHasData: false, sqliteHasData: true,
+      migrationCompleted: false, pgConfigured: true,
+    }).client).toBe('sqlite3');
+  });
+});
+
+describe('two populated databases is a conflict, not a guess (#1038 review r12)', () => {
+  // An install that ran on Postgres, lost NODE_ENV, and kept working on SQLite
+  // has real data on BOTH sides: the Postgres rows are old, the SQLite rows are
+  // newer. Picking either hides galleries and splits future writes.
+  test('no marker + data on both sides refuses to choose', () => {
+    const r = decideBootEngine({
+      configuredClient: 'pg', explicitClient: null,
+      pgHasData: true, sqliteHasData: true, migrationCompleted: false,
+    });
+    expect(r.client).toBeNull();
+    expect(r.reason).toBe('ambiguous-both-populated');
+  });
+
+  test('a completed migration is not a conflict — the marker says which is current', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: null,
+      pgHasData: true, sqliteHasData: true, migrationCompleted: true, pgConfigured: true,
+    }).client).toBe('pg');
+  });
+
+  test('an explicit choice always resolves it', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'sqlite3',
+      pgHasData: true, sqliteHasData: true, migrationCompleted: false,
+    }).client).toBe('sqlite3');
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: 'pg',
+      pgHasData: true, sqliteHasData: true, migrationCompleted: false,
+    }).client).toBe('pg');
+  });
+
+  test('only one side populated is not a conflict', () => {
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: null,
+      pgHasData: true, sqliteHasData: false, migrationCompleted: false,
+    }).client).toBe('pg');
+    expect(decideBootEngine({
+      configuredClient: 'pg', explicitClient: null,
+      pgHasData: false, sqliteHasData: true, migrationCompleted: false,
+    }).client).toBe('sqlite3');
+  });
+
+  test('the pg probe target comes from the environment, not a sqlite config', () => {
+    const { pgConnectionFromEnv } = require('../../src/utils/databaseEngine');
+    const prev = { ...process.env };
+    process.env.DB_HOST = 'db.internal';
+    process.env.DB_NAME = 'picpeak_prod';
+    try {
+      const c = pgConnectionFromEnv();
+      expect(c.host).toBe('db.internal');
+      expect(c.database).toBe('picpeak_prod');
+    } finally {
+      process.env.DB_HOST = prev.DB_HOST;
+      process.env.DB_NAME = prev.DB_NAME;
+    }
+  });
+});
+
+describe('the target is resolved once, with production defaults (#1038 review r13)', () => {
+  // knexfile's DEVELOPMENT block defaults pg to localhost/postgres/photo_sharing
+  // while production uses db/picpeak/picpeak. The CLI runs in the NODE_ENV-unset
+  // state by design, so without an explicit resolution the migration could land
+  // in a database the running application never opens.
+  const { pgConnectionFromEnv } = require('../../src/utils/databaseEngine');
+
+  test('falls back to what a running container actually uses', () => {
+    // Host is `postgres`, matching wait-for-db.sh, which resolves and EXPORTS
+    // that value — so it is the host a bare container really runs against.
+    // knexfile's production block says `db`, but that default is only reached
+    // when the entrypoint did not run; a `docker exec` CLI has to agree with
+    // the runtime, not with the dormant default (#1038 review r14).
+    const prev = { ...process.env };
+    delete process.env.DB_HOST; delete process.env.DB_USER; delete process.env.DB_NAME;
+    try {
+      const c = pgConnectionFromEnv();
+      expect(c.host).toBe('postgres');
+      expect(c.user).toBe('picpeak');
+      expect(c.database).toBe('picpeak');
+    } finally {
+      Object.assign(process.env, prev);
+    }
+  });
+
+  test('explicit settings always win', () => {
+    const prev = { ...process.env };
+    process.env.DB_HOST = 'pg.example'; process.env.DB_NAME = 'mypics';
+    try {
+      const c = pgConnectionFromEnv();
+      expect(c.host).toBe('pg.example');
+      expect(c.database).toBe('mypics');
+    } finally {
+      Object.assign(process.env, prev);
+    }
+  });
+});
+
+describe('the marker is bound to the target it describes (#1038 review r15)', () => {
+  const { currentPgTargetId, readMigrationMarker } = require('../../src/utils/databaseEngine');
+
+  test('the target id has the shape the migration records', () => {
+    const prev = { ...process.env };
+    process.env.DB_HOST = 'pg.host'; process.env.DB_PORT = '6543'; process.env.DB_NAME = 'picpeak_prod';
+    try {
+      expect(currentPgTargetId()).toBe('pg.host:6543/picpeak_prod');
+    } finally {
+      Object.assign(process.env, prev);
+    }
+  });
+
+  test('an absent or unreadable marker reads as null, not a throw', () => {
+    expect(readMigrationMarker('/nonexistent/photo_sharing.db')).toBeNull();
+  });
+
+  test('inbound_documents is a real table; incoming_invoices never was', () => {
+    // The occupancy lists silently skip tables that do not exist, so a wrong
+    // name meant supplier documents never protected the install.
+    const src = fs.readFileSync(
+      path.resolve(__dirname, '..', '..', 'src', 'utils', 'databaseEngine.js'), 'utf8',
+    );
+    const cli = fs.readFileSync(
+      path.resolve(__dirname, '..', '..', 'scripts', 'migrate-sqlite-to-postgres.js'), 'utf8',
+    );
+    for (const text of [src, cli]) {
+      expect(text).toContain("'inbound_documents'");
+      expect(text).not.toContain("'incoming_invoices'");
+    }
+  });
+});

backend/__tests__/utils/feedbackSettingsUpdate.test.js

@@ -0,0 +1,161 @@
+/**
+ * Regression tests for the feedback-settings write path (#1030).
+ *
+ * The admin event form posts its whole client-side feedback state back,
+ * including three keys that were never columns on event_feedback_settings:
+ * `enable_rate_limiting`, `rate_limit_window_minutes` and
+ * `rate_limit_max_requests`. Spreading those into the knex UPDATE threw,
+ * the route answered 500, and EventDetailsPage swallowed it — so the admin
+ * saw "Event updated successfully" while "Enable feedback" never persisted
+ * and guests could not leave any feedback.
+ *
+ * Pinned here:
+ *  - UI-only keys are dropped, not written, on BOTH the insert (no row yet)
+ *    and update (row exists) branches.
+ *  - Every real column still round-trips.
+ *  - Identity columns can't be mass-assigned through the settings body.
+ *  - gallery.js no longer declares a duplicate GET /:slug/feedback-settings.
+ *    server.js mounts galleryRoutes before galleryFeedback, so the duplicate
+ *    shadowed the real handler and dropped the #655 per-guest caps from the
+ *    guest payload.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-feedback-settings-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'feedback-settings-test-secret';
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+const feedbackService = require('../../src/services/feedbackService');
+
+// Exactly what EventDetailsPage holds in state before its settings GET
+// resolves — the three rate-limit keys are UI-only.
+const ADMIN_FORM_BODY = {
+  feedback_enabled: true,
+  allow_ratings: true,
+  allow_likes: true,
+  allow_comments: true,
+  allow_favorites: true,
+  allow_reactions: true,
+  require_name_email: false,
+  moderate_comments: true,
+  show_feedback_to_guests: true,
+  enable_rate_limiting: false,
+  rate_limit_window_minutes: 15,
+  rate_limit_max_requests: 10,
+};
+
+let db;
+let cleanup;
+let eventId;
+
+async function insertEvent(slug) {
+  const inserted = await db('events').insert({
+    slug,
+    event_type: 'wedding',
+    event_name: 'Feedback Settings Test',
+    event_date: '2026-06-22',
+    host_email: 'host@example.com',
+    admin_email: 'admin@example.com',
+    password_hash: 'x',
+    share_link: `/gallery/${slug}/share`,
+    share_token: `${slug}-share`,
+    expires_at: new Date(Date.now() + 7 * 24 * 3600 * 1000).toISOString(),
+    is_active: 1,
+    is_archived: 0,
+    is_draft: 0,
+    created_at: new Date().toISOString(),
+  }).returning('id');
+  return inserted[0]?.id ?? inserted[0];
+}
+
+beforeAll(async () => {
+  ({ db, cleanup } = await bootCrmDb());
+  await seedMinimal(db);
+  eventId = await insertEvent('feedback-settings-test');
+}, 120000);
+
+afterAll(async () => { if (cleanup) await cleanup(); });
+
+describe('updateEventFeedbackSettings ignores UI-only keys (#1030)', () => {
+  test('insert branch: enabling feedback on an event with no settings row persists', async () => {
+    const freshEventId = await insertEvent('feedback-settings-fresh');
+
+    const result = await feedbackService.updateEventFeedbackSettings(freshEventId, ADMIN_FORM_BODY);
+
+    expect(result.feedback_enabled).toBeTruthy();
+    const row = await db('event_feedback_settings').where('event_id', freshEventId).first();
+    expect(row).toBeTruthy();
+    expect(row.feedback_enabled).toBeTruthy();
+    expect(row).not.toHaveProperty('enable_rate_limiting');
+  });
+
+  test('update branch: flipping the toggle on an existing row persists', async () => {
+    await feedbackService.updateEventFeedbackSettings(eventId, { feedback_enabled: false });
+    expect((await feedbackService.getEventFeedbackSettings(eventId)).feedback_enabled).toBeFalsy();
+
+    const result = await feedbackService.updateEventFeedbackSettings(eventId, ADMIN_FORM_BODY);
+
+    expect(result.feedback_enabled).toBeTruthy();
+    const rows = await db('event_feedback_settings').where('event_id', eventId);
+    expect(rows).toHaveLength(1);
+    expect(rows[0].feedback_enabled).toBeTruthy();
+  });
+
+  test('every real column round-trips', async () => {
+    const result = await feedbackService.updateEventFeedbackSettings(eventId, {
+      ...ADMIN_FORM_BODY,
+      allow_comments: false,
+      show_feedback_to_guests: false,
+      identity_mode: 'guest',
+      max_favorites_per_guest: 10,
+      max_likes_per_guest: 5,
+    });
+
+    expect(result.allow_comments).toBeFalsy();
+    expect(result.show_feedback_to_guests).toBeFalsy();
+    expect(result.identity_mode).toBe('guest');
+    expect(result.max_favorites_per_guest).toBe(10);
+    expect(result.max_likes_per_guest).toBe(5);
+  });
+
+  test('identity columns cannot be mass-assigned through the settings body', async () => {
+    const otherEventId = await insertEvent('feedback-settings-other');
+    const before = await db('event_feedback_settings').where('event_id', eventId).first();
+
+    await feedbackService.updateEventFeedbackSettings(eventId, {
+      feedback_enabled: true,
+      id: 99999,
+      event_id: otherEventId,
+    });
+
+    const after = await db('event_feedback_settings').where('event_id', eventId).first();
+    expect(after.id).toBe(before.id);
+    expect(after.event_id).toBe(eventId);
+    expect(await db('event_feedback_settings').where('event_id', otherEventId).first()).toBeUndefined();
+  });
+});
+
+describe('guest feedback-settings route is not shadowed (#1030)', () => {
+  test('gallery.js does not declare GET /:slug/feedback-settings', () => {
+    const source = fs.readFileSync(
+      path.resolve(__dirname, '..', '..', 'src', 'routes', 'gallery.js'), 'utf8',
+    );
+    expect(source).not.toMatch(/router\.get\(\s*['"]\/:slug\/feedback-settings['"]/);
+  });
+
+  test('galleryFeedback.js still serves it, including the #655 per-guest caps', () => {
+    const source = fs.readFileSync(
+      path.resolve(__dirname, '..', '..', 'src', 'routes', 'galleryFeedback.js'), 'utf8',
+    );
+    expect(source).toMatch(/router\.get\(\s*['"]\/:slug\/feedback-settings['"]/);
+    expect(source).toMatch(/max_favorites_per_guest/);
+    expect(source).toMatch(/max_likes_per_guest/);
+  });
+});

backend/__tests__/utils/networkValidation.dns.test.js

@@ -0,0 +1,128 @@
+/**
+ * DNS-resolving SSRF guard (GHSA SSRF cluster: webhook / S3 / rsync / SMTP /
+ * IMAP). The literal isPrivateIP check can't see that a public-looking
+ * hostname resolves to an internal/metadata IP; isHostAllowed resolves the
+ * name and vets every A/AAAA record.
+ */
+jest.mock('dns', () => {
+  const actual = jest.requireActual('dns');
+  return { ...actual, promises: { ...actual.promises, lookup: jest.fn() } };
+});
+const dns = require('dns');
+const {
+  isHostAllowed,
+  validateExternalUrlAsync,
+  classifyHost,
+} = require('../../src/utils/networkValidation');
+
+const lookup = dns.promises.lookup;
+
+describe('classifyHost', () => {
+  beforeEach(() => lookup.mockReset());
+
+  it('distinguishes private, unresolved, ok, and invalid', async () => {
+    lookup.mockResolvedValue([{ address: '10.0.0.5', family: 4 }]);
+    expect(await classifyHost('evil.example')).toBe('private');
+
+    lookup.mockResolvedValue([{ address: '93.184.216.34', family: 4 }]);
+    expect(await classifyHost('example.com')).toBe('ok');
+
+    lookup.mockRejectedValue(new Error('EAI_AGAIN'));
+    expect(await classifyHost('blip.example')).toBe('unresolved');
+
+    lookup.mockResolvedValue([]);
+    expect(await classifyHost('empty.example')).toBe('unresolved');
+
+    expect(await classifyHost('')).toBe('invalid');
+    expect(await classifyHost('10.0.0.1')).toBe('private'); // literal, no lookup
+  });
+});
+
+describe('isHostAllowed', () => {
+  beforeEach(() => lookup.mockReset());
+
+  it('rejects a public hostname that resolves to a private IP', async () => {
+    lookup.mockResolvedValue([{ address: '10.0.0.5', family: 4 }]);
+    expect(await isHostAllowed('evil.example.com')).toBe(false);
+  });
+
+  it('rejects when the hostname resolves to the cloud metadata IP', async () => {
+    lookup.mockResolvedValue([{ address: '169.254.169.254', family: 4 }]);
+    expect(await isHostAllowed('metadata-rebind.example')).toBe(false);
+  });
+
+  it('rejects when ANY resolved address is private (rebinding / mixed records)', async () => {
+    lookup.mockResolvedValue([
+      { address: '93.184.216.34', family: 4 },
+      { address: '169.254.169.254', family: 4 },
+    ]);
+    expect(await isHostAllowed('rebind.example')).toBe(false);
+  });
+
+  it('allows a hostname that resolves only to public IPs', async () => {
+    lookup.mockResolvedValue([{ address: '93.184.216.34', family: 4 }]);
+    expect(await isHostAllowed('example.com')).toBe(true);
+  });
+
+  it('fails closed when resolution errors', async () => {
+    lookup.mockRejectedValue(new Error('ENOTFOUND'));
+    expect(await isHostAllowed('nxdomain.invalid')).toBe(false);
+  });
+
+  it('fails closed on an empty resolution', async () => {
+    lookup.mockResolvedValue([]);
+    expect(await isHostAllowed('empty.example')).toBe(false);
+  });
+
+  it('rejects literal private IPs and blocked names without resolving', async () => {
+    expect(await isHostAllowed('127.0.0.1')).toBe(false);
+    expect(await isHostAllowed('10.0.0.1')).toBe(false);
+    expect(await isHostAllowed('localhost')).toBe(false);
+    expect(await isHostAllowed('metadata.google.internal')).toBe(false);
+    expect(await isHostAllowed('foo.internal')).toBe(false);
+    expect(lookup).not.toHaveBeenCalled();
+  });
+
+  it('allows a public IP literal without resolving', async () => {
+    expect(await isHostAllowed('93.184.216.34')).toBe(true);
+    expect(lookup).not.toHaveBeenCalled();
+  });
+
+  it('rejects empty / non-string input', async () => {
+    expect(await isHostAllowed('')).toBe(false);
+    expect(await isHostAllowed(null)).toBe(false);
+  });
+});
+
+describe('validateExternalUrlAsync', () => {
+  beforeEach(() => lookup.mockReset());
+
+  it('rejects a URL whose host resolves to a private address', async () => {
+    lookup.mockResolvedValue([{ address: '10.1.2.3', family: 4 }]);
+    const r = await validateExternalUrlAsync('https://evil.example/hook');
+    expect(r.valid).toBe(false);
+  });
+
+  it('accepts a URL whose host resolves public', async () => {
+    lookup.mockResolvedValue([{ address: '93.184.216.34', family: 4 }]);
+    expect((await validateExternalUrlAsync('https://example.com/hook')).valid).toBe(true);
+  });
+
+  it('rejects a malformed URL', async () => {
+    expect((await validateExternalUrlAsync('not a url')).valid).toBe(false);
+  });
+
+  it('reports reason=unresolved for a transient lookup failure (retryable)', async () => {
+    lookup.mockRejectedValue(new Error('EAI_AGAIN'));
+    const r = await validateExternalUrlAsync('https://blip.example/hook');
+    expect(r.valid).toBe(false);
+    expect(r.reason).toBe('unresolved');
+  });
+
+  it('reports reason=private for a resolved-private host (permanent)', async () => {
+    lookup.mockResolvedValue([{ address: '169.254.169.254', family: 4 }]);
+    const r = await validateExternalUrlAsync('https://rebind.example/hook');
+    expect(r.valid).toBe(false);
+    expect(r.reason).toBe('private');
+  });
+});

backend/__tests__/utils/pdfContentDisposition.test.js

@@ -0,0 +1,143 @@
+/**
+ * Regression test for #1024: quote/invoice PDF endpoints 500'd (or silently
+ * corrupted the filename) for customers whose name carries non-ASCII.
+ *
+ * The six PDF routes built the header by interpolating buildPdfFilename()'s
+ * result straight into `inline; filename="${filename}"`. HTTP header values
+ * are latin1, which splits the failure in two — and the split matters,
+ * because the issue reported the umlaut case as the 500 and it isn't:
+ *
+ *   U+0080-U+00FF  (ä ö ü ß — every German umlaut)
+ *       No throw. The byte goes out raw and the client reads back a mangled
+ *       name. A silent corruption, not an error.
+ *
+ *   above U+00FF   (Polish ł, Czech ř, Turkish ş, €, Cyrillic, CJK, emoji)
+ *       Node's setHeader rejects it with ERR_INVALID_CHAR. Because the
+ *       throw lands after the PDF buffer is already rendered, the whole
+ *       request fails as an unhandled 500.
+ *
+ * buildContentDisposition() fixes both: an ASCII fallback for the legacy
+ * `filename=` parameter plus the RFC 5987 `filename*=UTF-8''…` form that
+ * carries the real name.
+ *
+ * These assertions run against the real Node header validator via a live
+ * express server, so they'd fail against the old interpolation rather than
+ * merely testing the helper in isolation.
+ */
+const express = require('express');
+const request = require('supertest');
+
+const { buildPdfFilename, sanitiseSegment } = require('../../src/utils/pdfFilename');
+const { buildContentDisposition } = require('../../src/utils/filenameSanitizer');
+
+// The RFC 5987 parameter prefix, i.e. filename*=UTF-8'' — the two trailing
+// quotes are the (empty) language tag the spec puts between the charset and
+// the percent-encoded value.
+const RFC5987_PREFIX = 'filename*=UTF-8\'\'';
+
+// Mirrors what the six PDF routes now do.
+function buildApp(customer, docNumber = 'Q-2026-0042') {
+  const app = express();
+  app.get('/pdf', (req, res) => {
+    const filename = buildPdfFilename({ docNumber, customer, fallback: 'quote-preview' });
+    res.set('Content-Type', 'application/pdf');
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
+    res.send(Buffer.from('%PDF-1.4 fake'));
+  });
+  // Mirrors the real error handler: an ERR_INVALID_CHAR throw inside the
+  // handler surfaces as a 500, which is what #1024 reported.
+  // eslint-disable-next-line no-unused-vars
+  app.use((err, req, res, next) => res.status(500).json({ error: err.code || err.message }));
+  return app;
+}
+
+describe('#1024 — PDF Content-Disposition with non-ASCII customer names', () => {
+  it('serves a PDF for a German umlaut name and keeps the name intact', async () => {
+    const res = await request(buildApp({ company_name: 'Müller Fotografie' })).get('/pdf');
+
+    expect(res.status).toBe(200);
+    const cd = res.headers['content-disposition'];
+    // RFC 5987 form carries the real, unmangled name...
+    expect(cd).toContain(RFC5987_PREFIX);
+    expect(cd).toContain(encodeURIComponent('Müller-Fotografie.pdf'));
+    // ...and the ASCII fallback is legal latin1 with no raw umlaut byte.
+    const fallback = /filename="([^"]+)"/.exec(cd)[1];
+    expect(fallback).toMatch(/^[\x20-\x7e]+$/);
+  });
+
+  it.each([
+    ['Polish',   'Michał Kowalski'],
+    ['Czech',    'Dvořák Studio'],
+    ['Turkish',  'Şahin Fotoğraf'],
+    ['Cyrillic', 'Иванов Фото'],
+    ['CJK',      '山田写真'],
+    ['emoji',    'Studio 🎉 Berlin'],
+  ])('does not 500 for a %s customer name (was ERR_INVALID_CHAR)', async (_label, company) => {
+    const res = await request(buildApp({ company_name: company })).get('/pdf');
+
+    expect(res.status).toBe(200);
+    const cd = res.headers['content-disposition'];
+    expect(cd).toContain(RFC5987_PREFIX);
+    // The legacy filename= token drops non-ASCII, so a name written entirely
+    // in another script degrades to just the document number
+    // (`Q-2026-0042_.pdf`). That's the intended trade — filename* carries the
+    // real name — but the fallback must still be a legal, non-empty,
+    // ASCII-only token, since that is what a client without RFC 5987 support
+    // ends up saving.
+    const fallback = /filename="([^"]*)"/.exec(cd)[1];
+    expect(fallback.length).toBeGreaterThan(0);
+    expect(fallback).toMatch(/^[\x20-\x7e]+$/);
+    expect(fallback).toContain('Q-2026-0042');
+  });
+
+  it('leaves a plain ASCII name on the familiar filename= form', async () => {
+    const res = await request(buildApp({ company_name: 'Bright Studio' })).get('/pdf');
+
+    expect(res.status).toBe(200);
+    expect(res.headers['content-disposition'])
+      .toContain('filename="Q-2026-0042_Bright-Studio.pdf"');
+  });
+
+  it('still works when the customer row is missing entirely (preview path)', async () => {
+    const res = await request(buildApp(null, null)).get('/pdf');
+
+    expect(res.status).toBe(200);
+    expect(res.headers['content-disposition']).toContain('quote-preview_customer.pdf');
+  });
+
+  // sanitiseSegment caps each segment at 80 UTF-16 code units. A cap landing
+  // inside an astral character used to leave a dangling high surrogate, which
+  // makes encodeURIComponent throw URIError inside buildContentDisposition —
+  // a 500 on the very endpoint this PR fixes, reached a different way.
+  it.each([
+    ['emoji on the 80-char boundary',      `${'a'.repeat(79)}🎉`],
+    ['astral CJK on the boundary',         `${'a'.repeat(79)}𠜎`],
+    ['a label that is entirely astral',    '🎉'.repeat(60)],
+  ])('does not 500 when truncation splits a surrogate pair — %s', async (_label, company) => {
+    const res = await request(buildApp({ company_name: company })).get('/pdf');
+
+    expect(res.status).toBe(200);
+    expect(res.headers['content-disposition']).toContain(RFC5987_PREFIX);
+  });
+
+  it('drops the orphaned surrogate rather than widening the length cap', () => {
+    const seg = sanitiseSegment(`${'a'.repeat(79)}🎉`);
+
+    // 79 'a's + a half-emoji would be 80; the orphan is dropped, not kept.
+    expect(seg).toHaveLength(79);
+    expect(seg).toBe('a'.repeat(79));
+    // Nothing in the result may be an unpaired surrogate.
+    expect(seg).toBe(seg.replace(/[\uD800-\uDBFF](?![\uDC00-\uDFFF])/g, ''));
+  });
+
+  it('the raw interpolation these routes used to do really does throw', () => {
+    // Pins the root cause itself, so nobody "simplifies" the helper away.
+    const filename = buildPdfFilename({
+      docNumber: 'Q-2026-0042',
+      customer: { company_name: 'Michał Kowalski' },
+    });
+    const res = new (require('http').ServerResponse)({});
+    expect(() => res.setHeader('Content-Disposition', `inline; filename="${filename}"`))
+      .toThrow(/ERR_INVALID_CHAR|Invalid character/);
+  });
+});

backend/__tests__/utils/photoVisibility.test.js

@@ -0,0 +1,40 @@
+/**
+ * Unit tests for the shared hidden-photo access-control helper.
+ *
+ * Pins the rule that ordinary gallery guests never receive photos with
+ * visibility='hidden' (NULL = visible), while PIN-clients see everything.
+ */
+const {
+  canSeeHiddenPhotos,
+  isPhotoHiddenFromViewer,
+} = require('../../src/utils/photoVisibility');
+
+describe('canSeeHiddenPhotos', () => {
+  it('is true only for the client access level', () => {
+    expect(canSeeHiddenPhotos('client')).toBe(true);
+    expect(canSeeHiddenPhotos('guest')).toBe(false);
+    expect(canSeeHiddenPhotos('slideshow')).toBe(false);
+    expect(canSeeHiddenPhotos(undefined)).toBe(false);
+  });
+});
+
+describe('isPhotoHiddenFromViewer', () => {
+  it('blocks a hidden photo from guests', () => {
+    expect(isPhotoHiddenFromViewer({ visibility: 'hidden' }, 'guest')).toBe(true);
+    expect(isPhotoHiddenFromViewer({ visibility: 'hidden' }, 'slideshow')).toBe(true);
+  });
+
+  it('lets clients see hidden photos', () => {
+    expect(isPhotoHiddenFromViewer({ visibility: 'hidden' }, 'client')).toBe(false);
+  });
+
+  it('treats visible and NULL visibility as viewable by everyone', () => {
+    expect(isPhotoHiddenFromViewer({ visibility: 'visible' }, 'guest')).toBe(false);
+    expect(isPhotoHiddenFromViewer({ visibility: null }, 'guest')).toBe(false);
+    expect(isPhotoHiddenFromViewer({}, 'guest')).toBe(false);
+  });
+
+  it('is null-safe', () => {
+    expect(isPhotoHiddenFromViewer(null, 'guest')).toBe(false);
+  });
+});

backend/__tests__/utils/resolveLogoFile.test.js

@@ -99,10 +99,22 @@ describe('resolveLogoFile', () => {
     }
   });
 
-  it('treats absolute paths as-is when they exist', async () => {
+  it('rejects an absolute path OUTSIDE the storage roots (GHSA-c7x5)', async () => {
+    // The raw-absolute candidate was an arbitrary-file-read primitive
+    // (logo_path: '/etc/passwd' → rasterised into a PDF). Absolute paths
+    // outside the storage roots are now dropped even if they exist.
     existsSpy.mockImplementation((p) => p === '/abs/path/logo.png');
     getAppSetting.mockResolvedValue(null);
     const out = await resolveLogoFile({ logo_path: '/abs/path/logo.png' });
-    expect(out).toBe('/abs/path/logo.png');
+    expect(out).toBeNull();
+  });
+
+  it('still accepts an absolute path INSIDE the storage root', async () => {
+    // The legitimate case: multer stores the uploaded logo under
+    // storage/uploads/logos with an absolute path — that stays resolvable.
+    existsSpy.mockImplementation((p) => p === '/app/storage/uploads/logos/logo.png');
+    getAppSetting.mockResolvedValue(null);
+    const out = await resolveLogoFile({ logo_path: '/app/storage/uploads/logos/logo.png' });
+    expect(out).toBe('/app/storage/uploads/logos/logo.png');
   });
 });

backend/__tests__/utils/sanitizeForLog.test.js

@@ -0,0 +1,96 @@
+/**
+ * Credential redaction for log payloads (GHSA-pgmp / GHSA-r794).
+ *
+ * Event create/update logged the whole request body. Beyond the plaintext
+ * gallery password named in the advisories, the update path also logged
+ * `client_share_token` — a LIVE bearer credential for client gallery access,
+ * freshly minted by `regenerate_client_token` — and `client_password_hash`.
+ */
+
+const { sanitizeForLog, isSensitiveKey } = require('../../src/utils/sanitizeForLog');
+
+describe('sanitizeForLog', () => {
+  it('redacts the credentials an event body actually carries', () => {
+    const out = sanitizeForLog({
+      event_name: 'Wedding',
+      password: 'FAKE-PLAINTEXT-PASSWORD',
+      client_password: 'FAKE-CLIENT-PASSWORD',
+      client_password_hash: 'FAKE-BCRYPT-HASH-PLACEHOLDER',
+      client_share_token: 'FAKE-CLIENT-SHARE-TOKEN',
+      share_token: 'FAKE-SHARE-TOKEN',
+    });
+
+    expect(out.event_name).toBe('Wedding');
+    for (const key of ['password', 'client_password', 'client_password_hash',
+      'client_share_token', 'share_token']) {
+      expect(out[key]).toBe('[redacted]');
+    }
+    expect(JSON.stringify(out)).not.toContain('FAKE-PLAINTEXT-PASSWORD');
+    expect(JSON.stringify(out)).not.toContain('FAKE-CLIENT-SHARE-TOKEN');
+  });
+
+  it('redacts nested and array-nested secrets', () => {
+    const out = sanitizeForLog({
+      smtp: { host: 'mail.example.com', smtp_password: 'p' },
+      users: [{ name: 'a', api_key: 'k' }],
+    });
+    expect(out.smtp.host).toBe('mail.example.com');
+    expect(out.smtp.smtp_password).toBe('[redacted]');
+    expect(out.users[0].name).toBe('a');
+    expect(out.users[0].api_key).toBe('[redacted]');
+  });
+
+  it('passes non-objects through and survives cycles', () => {
+    expect(sanitizeForLog('plain')).toBe('plain');
+    expect(sanitizeForLog(42)).toBe(42);
+    expect(sanitizeForLog(null)).toBeNull();
+
+    const cyclic = { name: 'x' };
+    cyclic.self = cyclic;
+    expect(() => sanitizeForLog(cyclic)).not.toThrow();
+    expect(sanitizeForLog(cyclic).self).toBe('[circular]');
+  });
+
+  it('matches key names case-insensitively and by fragment', () => {
+    expect(isSensitiveKey('Authorization')).toBe(true);
+    expect(isSensitiveKey('CLIENT_SHARE_TOKEN')).toBe(true);
+    expect(isSensitiveKey('event_name')).toBe(false);
+  });
+});
+
+/**
+ * Codex round 2: sanitizing req.body was not enough. express-validator's
+ * errors.array() embeds the SUBMITTED value per field, so a password rejected
+ * for being too short was still logged in plaintext.
+ */
+describe('sanitizeValidationErrors', () => {
+  const { sanitizeValidationErrors } = require('../../src/utils/sanitizeForLog');
+
+  it('redacts the submitted value for a password field', () => {
+    const out = sanitizeValidationErrors([
+      { type: 'field', path: 'password', msg: 'too short', value: 'FAKE-PLAINTEXT-PASSWORD' },
+      { type: 'field', path: 'event_name', msg: 'required', value: '' },
+    ]);
+    expect(out[0].value).toBe('[redacted]');
+    expect(out[0].msg).toBe('too short');
+    expect(JSON.stringify(out)).not.toContain('FAKE-PLAINTEXT-PASSWORD');
+    expect(out[1].value).toBe('');
+  });
+
+  it('handles the legacy `param` field name', () => {
+    const out = sanitizeValidationErrors([{ param: 'client_password', value: 'FAKE-SECRET' }]);
+    expect(out[0].value).toBe('[redacted]');
+  });
+
+  it('recurses into object values on non-sensitive fields', () => {
+    const out = sanitizeValidationErrors([
+      { path: 'config', value: { host: 'h', api_key: 'k' } },
+    ]);
+    expect(out[0].value.host).toBe('h');
+    expect(out[0].value.api_key).toBe('[redacted]');
+  });
+
+  it('passes non-arrays through untouched', () => {
+    expect(sanitizeValidationErrors(undefined)).toBeUndefined();
+  });
+});

backend/__tests__/utils/sqliteNullableEventDates.test.js

@@ -0,0 +1,106 @@
+/**
+ * Regression test for clearing an event's expiration on SQLite (#1029).
+ *
+ * Migration 061 dropped the NOT NULL on events.event_date / events.expires_at
+ * for Postgres only — it skipped SQLite on the (wrong) premise that SQLite
+ * doesn't enforce NOT NULL. It does, so every SQLite install answered
+ *
+ *     SQLITE_CONSTRAINT: NOT NULL constraint failed: events.expires_at
+ *
+ * when an admin cleared the expiration, surfacing as "Failed to update event".
+ * Migration 174 finishes the job. The harness runs on SQLite, so this asserts
+ * the real engine behaviour rather than a mock.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(
+  fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-nullable-dates-')), 'db.sqlite',
+);
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'nullable-dates-test-secret';
+
+const { bootCrmDb, seedMinimal } = require('../integration/helpers/crmDb');
+
+let db;
+let cleanup;
+let eventId;
+
+beforeAll(async () => {
+  ({ db, cleanup } = await bootCrmDb());
+  await seedMinimal(db);
+  const inserted = await db('events').insert({
+    slug: 'nullable-dates-test',
+    event_type: 'wedding',
+    event_name: 'Nullable Dates Test',
+    event_date: '2026-06-22',
+    host_email: 'host@example.com',
+    admin_email: 'admin@example.com',
+    password_hash: 'x',
+    share_link: '/gallery/nullable-dates-test/share',
+    share_token: 'nullable-dates-share',
+    expires_at: new Date(Date.now() + 7 * 24 * 3600 * 1000).toISOString(),
+    is_active: 1,
+    is_archived: 0,
+    is_draft: 0,
+    created_at: new Date().toISOString(),
+  }).returning('id');
+  eventId = inserted[0]?.id ?? inserted[0];
+}, 120000);
+
+afterAll(async () => { if (cleanup) await cleanup(); });
+
+describe('events date columns are nullable on SQLite (#1029)', () => {
+  test('the engine under test really is SQLite', () => {
+    expect(['sqlite3', 'better-sqlite3']).toContain(db.client.config.client);
+  });
+
+  test('clearing expires_at succeeds — this threw SQLITE_CONSTRAINT before migration 174', async () => {
+    await db('events').where('id', eventId).update({ expires_at: null });
+    const row = await db('events').where('id', eventId).first('expires_at');
+    expect(row.expires_at).toBeNull();
+  });
+
+  test('clearing event_date succeeds too (061 covered both columns on PG)', async () => {
+    await db('events').where('id', eventId).update({ event_date: null });
+    const row = await db('events').where('id', eventId).first('event_date');
+    expect(row.event_date).toBeNull();
+  });
+
+  test('a gallery can be created with no expiration at all', async () => {
+    const inserted = await db('events').insert({
+      slug: 'never-expires-test',
+      event_type: 'other',
+      event_name: 'Never Expires',
+      event_date: null,
+      host_email: 'host@example.com',
+      admin_email: 'admin@example.com',
+      password_hash: 'x',
+      share_link: '/gallery/never-expires-test/share',
+      share_token: 'never-expires-share',
+      expires_at: null,
+      is_active: 1,
+      is_archived: 0,
+      is_draft: 0,
+      created_at: new Date().toISOString(),
+    }).returning('id');
+    const id = inserted[0]?.id ?? inserted[0];
+    const row = await db('events').where('id', id).first('expires_at', 'event_date');
+    expect(row.expires_at).toBeNull();
+    expect(row.event_date).toBeNull();
+  });
+
+  test('columns the events table depends on survived the table rebuild', async () => {
+    // Knex implements .alter() on SQLite by recreating the table; make sure the
+    // rebuild kept the row and the wider schema intact.
+    const row = await db('events').where('id', eventId).first();
+    expect(row.slug).toBe('nullable-dates-test');
+    expect(row.share_token).toBe('nullable-dates-share');
+    expect(await db.schema.hasColumn('events', 'allow_downloads')).toBe(true);
+    expect(await db.schema.hasColumn('events', 'hero_photo_id')).toBe(true);
+    const photos = await db('photos').where('event_id', eventId);
+    expect(Array.isArray(photos)).toBe(true);
+  });
+});

backend/knexfile.js

@@ -1,39 +1,13 @@
 require('dotenv').config();
 
-const path = require('path');
-
 // Database configuration for different environments
-const resolveSqliteFilename = (filenameEnv) => {
-  const fallback = path.join(__dirname, './data/photo_sharing.db');
-
-  if (!filenameEnv) {
-    return fallback;
-  }
-
-  const trimmed = String(filenameEnv).trim();
-  if (!trimmed) {
-    return fallback;
-  }
-
-  let resolved;
-  if (path.isAbsolute(trimmed)) {
-    resolved = trimmed;
-  } else if (trimmed.startsWith('./') || trimmed.startsWith('../')) {
-    resolved = path.resolve(__dirname, trimmed);
-  } else {
-    resolved = path.join(__dirname, trimmed);
-  }
-
-  const normalized = path.normalize(resolved);
-  const baseSuffix = path.relative(path.parse(__dirname).root, path.normalize(__dirname));
-  const duplicatePattern = `${path.sep}${baseSuffix}${path.sep}${baseSuffix}`;
-
-  if (normalized.includes(duplicatePattern)) {
-    return normalized.replace(duplicatePattern, `${path.sep}${baseSuffix}`);
-  }
-
-  return normalized;
-};
+// Shared with the engine guard (#1038) so both resolve the identical path.
+const { resolveSqliteFilename } = require('./src/utils/sqlitePath');
+// One resolution of the PostgreSQL target for the whole application (#1038).
+// The development and production blocks used to carry different host/user/
+// database defaults, so a process that probed or migrated against one could
+// hand over to a process that opened another.
+const { pgConnectionFromEnv } = require('./src/utils/pgConnection');
 
 const sqliteConnection = (filenameEnv) => ({
   filename: resolveSqliteFilename(filenameEnv)
@@ -54,13 +28,7 @@ const baseSqliteConfig = {
 const config = {
   development: {
     client: process.env.DATABASE_CLIENT || 'sqlite3',
-    connection: process.env.DATABASE_CLIENT === 'pg' ? {
-      host: process.env.DB_HOST || 'localhost',
-      port: process.env.DB_PORT || 5432,
-      user: process.env.DB_USER || 'postgres',
-      password: process.env.DB_PASSWORD || 'postgres',
-      database: process.env.DB_NAME || 'photo_sharing'
-    } : {
+    connection: process.env.DATABASE_CLIENT === 'pg' ? pgConnectionFromEnv() : {
       filename: resolveSqliteFilename(process.env.DATABASE_PATH || './data/photo_sharing.db')
     },
     useNullAsDefault: process.env.DATABASE_CLIENT !== 'pg',
@@ -97,12 +65,7 @@ const config = {
     // Support both Postgres and SQLite in production based on DATABASE_CLIENT
     connection: (process.env.DATABASE_CLIENT || 'pg') === 'pg'
       ? {
-          host: process.env.DB_HOST || 'db',
-          port: process.env.DB_PORT || 5432,
-          user: process.env.DB_USER || 'picpeak',
-          password: process.env.DB_PASSWORD,
-          database: process.env.DB_NAME || 'picpeak',
-          ssl: process.env.DB_SSL === 'true' ? { rejectUnauthorized: false } : false,
+          ...pgConnectionFromEnv(),
           // Connection stability settings
           connectionTimeoutMillis: 30000,
           idleTimeoutMillis: 30000,

backend/migrations/core/167_add_projects_created_by.js

@@ -0,0 +1,71 @@
+/**
+ * Migration 167: give `projects` a first-class owner (GHSA-wrg5).
+ *
+ * Project routes authorize on generic `events.view` / `events.edit` only, with
+ * no ownership check, so an editor-like admin could enumerate, read, update
+ * and aggregate projects belonging to other admins' events.
+ *
+ * Ownership IS derivable transitively — `events.project_id` (migration 117)
+ * plus `events.created_by` (migration 060) — but only for projects that have
+ * at least one linked event. A freshly created, still-empty project has no
+ * derivable owner, which would leave a hole exactly where the create → attach
+ * flow starts. Storing the creator removes that ambiguity: projectService
+ * already receives `adminId` in createProject() and simply discarded it.
+ *
+ * Backfill uses the transitive path, which is well-defined here: migration 117
+ * created exactly one auto-project per pre-existing event, so those projects
+ * map 1:1 to an owning event. Projects with no linked event (or whose events
+ * are themselves ownerless legacy rows) stay NULL and are treated as
+ * unowned//legacy by the ownership helper — same convention the events table
+ * already uses for `created_by IS NULL`.
+ *
+ * down() drops the column; the derived data is reconstructible by re-running
+ * the same backfill, so nothing is lost irreversibly.
+ */
+
+exports.up = async function (knex) {
+  if (!(await knex.schema.hasTable('projects'))) return;
+
+  if (!(await knex.schema.hasColumn('projects', 'created_by'))) {
+    await knex.schema.alterTable('projects', (t) => {
+      // No FK constraint: admin_users rows can be removed, and orphaning a
+      // project would be worse than a dangling id (which reads as unowned).
+      t.integer('created_by').nullable();
+    });
+  }
+
+  // Backfill from the linked events, only where we can determine it
+  // unambiguously (every owning event agrees on a single non-null creator).
+  if (await knex.schema.hasColumn('events', 'project_id')
+    && await knex.schema.hasColumn('events', 'created_by')) {
+    const rows = await knex('events')
+      .whereNotNull('project_id')
+      .whereNotNull('created_by')
+      .select('project_id', 'created_by')
+      .groupBy('project_id', 'created_by');
+
+    const byProject = new Map();
+    for (const row of rows) {
+      const list = byProject.get(row.project_id) || [];
+      list.push(row.created_by);
+      byProject.set(row.project_id, list);
+    }
+
+    for (const [projectId, creators] of byProject) {
+      // Ambiguous (events from two different admins) → leave NULL rather than
+      // guess an owner and hand one admin authority over another's work.
+      if (creators.length !== 1) continue;
+      await knex('projects')
+        .where({ id: projectId })
+        .whereNull('created_by')
+        .update({ created_by: creators[0] });
+    }
+  }
+};
+
+exports.down = async function (knex) {
+  if (!(await knex.schema.hasTable('projects'))) return;
+  if (await knex.schema.hasColumn('projects', 'created_by')) {
+    await knex.schema.alterTable('projects', (t) => t.dropColumn('created_by'));
+  }
+};

backend/migrations/core/168_fix_expense_activity_event_id.js

@@ -0,0 +1,64 @@
+/**
+ * GHSA-jhcf — data correction for legacy accounting activity rows.
+ *
+ * expenseService called `logActivity(type, metadata, adminId)`, but the third
+ * positional parameter of logActivity is `eventId`, not the actor. Every
+ * expense / incoming-invoice entry therefore stored the ACTING ADMIN'S ID in
+ * `activity_logs.event_id` (and no actor at all).
+ *
+ * That is not merely cosmetic. The dashboard activity feed now scopes rows via
+ * `WHERE activity_logs.event_id IN (SELECT id FROM events WHERE created_by = me)`.
+ * Admin ids and event ids are both small integers drawn from the same range, so
+ * on any upgraded instance an editor who happens to own the event whose id
+ * equals another admin's id is served that admin's accounting activity —
+ * verbatim metadata included. Scoping new writes correctly does nothing for the
+ * rows already on disk, so they are corrected here.
+ *
+ * The stored value is exactly the actor id we lost, so this re-attributes
+ * rather than discards: event_id → actor_id (when no actor was recorded), then
+ * event_id is cleared so the scope predicate can no longer match it.
+ *
+ * All ten activity types below are emitted by expenseService and nothing else,
+ * so no row with a genuine event_id is touched.
+ */
+
+const AFFECTED_TYPES = [
+  'incoming_invoice_captured',
+  'incoming_invoice_updated',
+  'incoming_invoice_categorized',
+  'incoming_invoice_rebilled',
+  'incoming_invoices_rebilled_bundle',
+  'incoming_invoice_supplier_payment',
+  'expense_created',
+  'expense_updated',
+  'expense_invoiced',
+  'expense_paid',
+];
+
+exports.up = async function up(knex) {
+  if (!(await knex.schema.hasTable('activity_logs'))) return;
+  if (!(await knex.schema.hasColumn('activity_logs', 'event_id'))) return;
+
+  const hasActorId = await knex.schema.hasColumn('activity_logs', 'actor_id');
+  const hasActorType = await knex.schema.hasColumn('activity_logs', 'actor_type');
+
+  if (hasActorId) {
+    const patch = { actor_id: knex.ref('event_id') };
+    if (hasActorType) patch.actor_type = 'admin';
+    await knex('activity_logs')
+      .whereIn('activity_type', AFFECTED_TYPES)
+      .whereNotNull('event_id')
+      .whereNull('actor_id')
+      .update(patch);
+  }
+
+  await knex('activity_logs')
+    .whereIn('activity_type', AFFECTED_TYPES)
+    .whereNotNull('event_id')
+    .update({ event_id: null });
+};
+
+// Irreversible by design: this is a data correction, and the pre-migration
+// state is a cross-admin disclosure. Re-planting admin ids in event_id would
+// reopen GHSA-jhcf.
+exports.down = async function down() {};

backend/migrations/core/174_sqlite_nullable_event_dates.js

@@ -0,0 +1,42 @@
+/**
+ * Migration 174: make events.event_date / events.expires_at nullable on SQLite (#1029).
+ *
+ * Migration 061 introduced the `event_require_event_date` /
+ * `event_require_expiration` settings and dropped the NOT NULL on both columns
+ * — but only for Postgres. It skipped SQLite on the premise that "SQLite
+ * doesn't enforce NOT NULL as strictly", which is simply untrue: clearing the
+ * expiration on a SQLite install fails with
+ *
+ *     SQLITE_CONSTRAINT: NOT NULL constraint failed: events.expires_at
+ *
+ * so "never expires" has never been reachable there. This finishes 061 for
+ * SQLite. Knex implements .alter() on SQLite by recreating the table; migration
+ * 073 already does exactly that on `events`, so the path is well-trodden here.
+ *
+ * Postgres is skipped — 061 already handled it, and knex's .alter() rewrites
+ * the whole column definition (type, default, nullability), which would be a
+ * needless rewrite of a column that is already correct.
+ */
+
+function isSqlite(knex) {
+  const client = knex.client.config.client;
+  return client === 'sqlite3' || client === 'better-sqlite3';
+}
+
+exports.up = async function(knex) {
+  if (!isSqlite(knex)) return;
+
+  const hasEvents = await knex.schema.hasTable('events');
+  if (!hasEvents) return;
+
+  await knex.schema.alterTable('events', (table) => {
+    table.datetime('event_date').nullable().alter();
+    table.datetime('expires_at').nullable().alter();
+  });
+};
+
+exports.down = async function(knex) {
+  // Deliberately irreversible. Restoring NOT NULL would fail on any install
+  // that has since created a gallery without an expiration — exactly what this
+  // migration enables — and 061's down() takes the same position for Postgres.
+};

backend/migrations/run-migrations-safe.js

@@ -276,11 +276,51 @@ async function runMigrations() {
 }
 
 // Add delay for database readiness in production
+// Engine consistency check (#1038). The entrypoint resolves the engine before
+// migrations run and exports DATABASE_CLIENT, so this normally agrees and does
+// nothing. It bites on a MANUAL migration run: without that env, an install
+// that is really on SQLite would resolve to Postgres here and build a schema in
+// the empty database, which then hides the SQLite data from the boot-time
+// check. Stop instead, and say which env to set.
+async function assertEngine() {
+  const knexConfig = require('../knexfile');
+  const logger = require('../src/utils/logger');
+  const { resolveBootEngine } = require('../src/utils/databaseEngine');
+  const decision = await resolveBootEngine({ knexConfig, logger });
+  if (decision.reason === 'marker-target-mismatch') {
+    console.error(
+      'Refusing to migrate: this install was migrated to a different PostgreSQL than the\n'
+      + 'one currently configured. The resolver printed both targets above.'
+    );
+    process.exit(1);
+  }
+  if (decision.reason === 'ambiguous-both-populated') {
+    // Both databases hold data and nothing records which is current; the
+    // resolver has already printed the comparison. There is no client to
+    // recommend here — the operator has to pick one.
+    console.error(
+      'Refusing to migrate: SQLite and PostgreSQL both hold data and neither is marked\n'
+      + 'as current. Set DATABASE_CLIENT=pg or DATABASE_CLIENT=sqlite3 to say which one\n'
+      + 'this command should touch.'
+    );
+    process.exit(1);
+  }
+  if (decision.client !== knexConfig.client) {
+    console.error(
+      `Refusing to migrate ${knexConfig.client} — this install's data is in ${decision.client}.\n`
+      + `Run migrations through the container entrypoint, or set DATABASE_CLIENT=${decision.client} explicitly.\n`
+      + 'To move the data across instead: node scripts/migrate-sqlite-to-postgres.js'
+    );
+    process.exit(1);
+  }
+}
+
 async function waitAndRun() {
   if (process.env.NODE_ENV === 'production') {
     console.log('Waiting 2 seconds for database readiness...');
     await new Promise(resolve => setTimeout(resolve, 2000));
   }
+  await assertEngine();
   await runMigrations();
 }
 

backend/migrations/run-migrations.js

@@ -46,10 +46,50 @@ async function runMigration(filepath) {
   }
 }
 
+// Engine consistency check (#1038). The entrypoint resolves the engine before
+// migrations run and exports DATABASE_CLIENT, so this normally agrees and does
+// nothing. It bites on a MANUAL migration run: without that env, an install
+// that is really on SQLite would resolve to Postgres here and build a schema in
+// the empty database, which then hides the SQLite data from the boot-time
+// check. Stop instead, and say which env to set.
+async function assertEngine() {
+  const knexConfig = require('../knexfile');
+  const logger = require('../src/utils/logger');
+  const { resolveBootEngine } = require('../src/utils/databaseEngine');
+  const decision = await resolveBootEngine({ knexConfig, logger });
+  if (decision.reason === 'marker-target-mismatch') {
+    console.error(
+      'Refusing to migrate: this install was migrated to a different PostgreSQL than the\n'
+      + 'one currently configured. The resolver printed both targets above.'
+    );
+    process.exit(1);
+  }
+  if (decision.reason === 'ambiguous-both-populated') {
+    // Both databases hold data and nothing records which is current; the
+    // resolver has already printed the comparison. There is no client to
+    // recommend here — the operator has to pick one.
+    console.error(
+      'Refusing to migrate: SQLite and PostgreSQL both hold data and neither is marked\n'
+      + 'as current. Set DATABASE_CLIENT=pg or DATABASE_CLIENT=sqlite3 to say which one\n'
+      + 'this command should touch.'
+    );
+    process.exit(1);
+  }
+  if (decision.client !== knexConfig.client) {
+    console.error(
+      `Refusing to migrate ${knexConfig.client} — this install's data is in ${decision.client}.\n`
+      + `Run migrations through the container entrypoint, or set DATABASE_CLIENT=${decision.client} explicitly.\n`
+      + 'To move the data across instead: node scripts/migrate-sqlite-to-postgres.js'
+    );
+    process.exit(1);
+  }
+}
+
 // Main migration runner
 async function runMigrations() {
   try {
     console.log('Starting database migrations...');
+    await assertEngine();
     
     // First run the init.js if it exists but only if migrations table doesn't exist
     const tableExists = await db.schema.hasTable('migrations');

backend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "picpeak-backend",
-  "version": "3.45.6",
+  "version": "3.46.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "picpeak-backend",
-      "version": "3.45.6",
+      "version": "3.46.0",
       "dependencies": {
         "@aws-sdk/client-s3": "^3.850.0",
         "@aws-sdk/lib-storage": "^3.850.0",
@@ -42,13 +42,14 @@
         "node-stream-zip": "^1.15.0",
         "nodemailer": "^9.0.1",
         "otplib": "^12.0.1",
+        "p-limit": "^3.1.0",
         "pdf-lib": "^1.17.1",
         "pdfkit": "^0.17.2",
         "pg": "^8.16.3",
-        "postcss": "8.5.18",
+        "postcss": "8.5.23",
         "qrcode": "^1.5.4",
         "react-i18next": "^15.6.0",
-        "sanitize-html": "^2.17.0",
+        "sanitize-html": "2.17.5",
         "sharp": "0.35.3",
         "sqlite3": "^5.1.6",
         "swagger-jsdoc": "^6.2.8",
@@ -4498,9 +4499,9 @@
       "license": "MIT"
     },
     "node_modules/brace-expansion": {
-      "version": "5.0.8",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.8.tgz",
-      "integrity": "sha512-JZyDyq3D4AUifKTPOB7DELf6XsB3WdPuNxCtob1vFXPsSXhdAiHBWJ/tJ8HAc9aH84BK+5JFZLNkJKx3G9kzQg==",
+      "version": "5.0.9",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.9.tgz",
+      "integrity": "sha512-ScQ4IuvIEF1TMlP7Zt+vjJ//9zlPb2SDcxWxM3bk8s6t6GGdJ7KO1dCcTidOPJKePW30LE/2cT7wCyPho9/Wxg==",
       "license": "MIT",
       "dependencies": {
         "balanced-match": "^4.0.2"
@@ -5226,6 +5227,12 @@
       "integrity": "sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q==",
       "license": "MIT"
     },
+    "node_modules/dayjs": {
+      "version": "1.11.21",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.21.tgz",
+      "integrity": "sha512-98IT+HOahAisibz/yjKbzuOBwYcjJ7BCLPzARyHiyEBmRz4fatF+KPJszEHXsGYjUG234aH/cOjW1wwTbKUZlA==",
+      "license": "MIT"
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -5308,9 +5315,19 @@
       }
     },
     "node_modules/deepmerge-ts": {
-      "version": "7.1.5",
-      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-7.1.5.tgz",
-      "integrity": "sha512-HOJkrhaYsweh+W+e74Yn7YStZOilkoPb6fycpwNLKzSPtruFs48nYis0zy5yJz1+ktUhHxoRDJ27RQAWLIJVJw==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-8.0.1.tgz",
+      "integrity": "sha512-szCXE7YLCvLKR9bFPJcvsezOShdalctSvrgN/LM/QGUEPZQajwjmsMObZ6/DuANT5lxzM/wtO8Feubwdkz8myA==",
+      "funding": [
+        {
+          "type": "ko-fi",
+          "url": "https://ko-fi.com/rebeccastevens"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/deepmerge-ts"
+        }
+      ],
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=16.0.0"
@@ -6785,19 +6802,7 @@
         "url": "https://github.com/sponsors/KillyMXI"
       }
     },
-    "node_modules/html-to-text/node_modules/entities": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/entities/-/entities-7.0.1.tgz",
-      "integrity": "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==",
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=0.12"
-      },
-      "funding": {
-        "url": "https://github.com/fb55/entities?sponsor=1"
-      }
-    },
-    "node_modules/html-to-text/node_modules/htmlparser2": {
+    "node_modules/htmlparser2": {
       "version": "10.1.0",
       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-10.1.0.tgz",
       "integrity": "sha512-VTZkM9GWRAtEpveh7MSF6SjjrpNVNNVJfFup7xTY3UpFtm67foy9HDVXneLtFVt4pMz5kZtgNcvCniNFb1hlEQ==",
@@ -6816,23 +6821,16 @@
         "entities": "^7.0.1"
       }
     },
-    "node_modules/htmlparser2": {
-      "version": "8.0.2",
-      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-8.0.2.tgz",
-      "integrity": "sha512-GYdjWKDkbRLkZ5geuHs5NY1puJ+PXwP7+fHPRz06Eirsb9ugf6d8kkXav6ADhcODhFFPMIXyxkxSuMf3D6NCFA==",
-      "funding": [
-        "https://github.com/fb55/htmlparser2?sponsor=1",
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/fb55"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "domelementtype": "^2.3.0",
-        "domhandler": "^5.0.3",
-        "domutils": "^3.0.1",
-        "entities": "^4.4.0"
+    "node_modules/htmlparser2/node_modules/entities": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-7.0.1.tgz",
+      "integrity": "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
       }
     },
     "node_modules/http-cache-semantics": {
@@ -7116,9 +7114,9 @@
       }
     },
     "node_modules/ip-address": {
-      "version": "10.2.0",
-      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-10.2.0.tgz",
-      "integrity": "sha512-/+S6j4E9AHvW9SWMSEY9Xfy66O5PWvVEJ08O0y5JGyEKQpojb0K0GKpz/v5HJ/G0vi3D2sjGK78119oXZeE0qA==",
+      "version": "10.4.0",
+      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-10.4.0.tgz",
+      "integrity": "sha512-oSK96Grm3aP6OrS263xVxbNDGVL7rzBtYdpGqlDG8iQdoenDoTs/nkki+DflYbAEE8Xl6o5YxhxlrKvI3nqKXQ==",
       "license": "MIT",
       "engines": {
         "node": ">= 12"
@@ -7993,9 +7991,9 @@
       "license": "MIT"
     },
     "node_modules/js-yaml": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.0.tgz",
-      "integrity": "sha512-1td788aAnnZ5qs7V2QIRl1owjtYpbKt749Y3xauqQgwIIGF/xXWz1wMTEBx5O3LK3lXLVuqXPdPxj2BoFHaW9Q==",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.1.tgz",
+      "integrity": "sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ==",
       "funding": [
         {
           "type": "github",
@@ -8232,6 +8230,15 @@
       "integrity": "sha512-Xq9nH7KlWZmXAtodXDDRE7vs6DU1gTU8zYDHDiWLSip45Egwq3plLHzPn27NgvzL2r1LMPC1vdqh98sQxtqj4A==",
       "license": "MIT"
     },
+    "node_modules/launder": {
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/launder/-/launder-1.7.1.tgz",
+      "integrity": "sha512-mU6WRz5EusL9ZZuiZ5SO4Y6C0P9PAUR9iwdb6bzj4KDihm28DiHFw+/yk9DBH4f+Pv1wuzQ4e2jV3oQ7mkIqvw==",
+      "license": "MIT",
+      "dependencies": {
+        "dayjs": "^1.11.7"
+      }
+    },
     "node_modules/lazystream": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/lazystream/-/lazystream-1.0.1.tgz",
@@ -9079,9 +9086,9 @@
       }
     },
     "node_modules/nanoid": {
-      "version": "3.3.16",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.16.tgz",
-      "integrity": "sha512-bzlKTyNJ7+LdGIIwy8ijFpIqEQIvafahV7eYykJ8Cvh42EdJeODoJ6gUJXpQJvej1BddH8OqTXZNE/KfbWAu8Q==",
+      "version": "3.3.18",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.18.tgz",
+      "integrity": "sha512-DTg4MJbGMWkfi6VZFdNt2/caMbQy4Ou+Op/hJQvGEWcnVfoA1QA+xzRKAzw9jD6+GVOOeYr/mIcuDSdug6F6+w==",
       "funding": [
         {
           "type": "github",
@@ -9558,7 +9565,6 @@
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.1.0.tgz",
       "integrity": "sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "yocto-queue": "^0.1.0"
@@ -10036,9 +10042,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.18",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.18.tgz",
-      "integrity": "sha512-xdB1oSLHbz1vRWgCDalrCqEFTWzFlhqFC5tIHLMOSUIjhm3XXQ1qrFy8S/ESr1JYRRXqM3c1QFiMZUJdUTqyMQ==",
+      "version": "8.5.23",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.23.tgz",
+      "integrity": "sha512-g50586zr4bZmwFiTlflMu8E0bDTb5I5gertgwAKmsdUlTQIhZtunzUlD1WSzwcVWPoAVpsrA6vlfCD7oXvRwgg==",
       "funding": [
         {
           "type": "opencollective",
@@ -10055,7 +10061,7 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "nanoid": "^3.3.12",
+        "nanoid": "^3.3.16",
         "picocolors": "^1.1.1",
         "source-map-js": "^1.2.1"
       },
@@ -10846,15 +10852,16 @@
       "license": "MIT"
     },
     "node_modules/sanitize-html": {
-      "version": "2.17.0",
-      "resolved": "https://registry.npmjs.org/sanitize-html/-/sanitize-html-2.17.0.tgz",
-      "integrity": "sha512-dLAADUSS8rBwhaevT12yCezvioCA+bmUTPH/u57xKPT8d++voeYE6HeluA/bPbQ15TwDBG2ii+QZIEmYx8VdxA==",
+      "version": "2.17.5",
+      "resolved": "https://registry.npmjs.org/sanitize-html/-/sanitize-html-2.17.5.tgz",
+      "integrity": "sha512-ZmU1joGRrvoyctKIiuwUxqR6moLoU2Wk+2bMccN6f7UwhAmwYDvWziqPxRDDN2Qip62NqnIrVrT9akbL6Wretg==",
       "license": "MIT",
       "dependencies": {
         "deepmerge": "^4.2.2",
         "escape-string-regexp": "^4.0.0",
-        "htmlparser2": "^8.0.0",
+        "htmlparser2": "^10.1.0",
         "is-plain-object": "^5.0.0",
+        "launder": "^1.7.1",
         "parse-srcset": "^1.0.2",
         "postcss": "^8.3.11"
       }
@@ -12590,7 +12597,6 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
       "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=10"

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "picpeak-backend",
-  "version": "3.45.10",
+  "version": "3.46.2",
   "description": "Backend for PicPeak event photo sharing platform",
   "main": "server.js",
   "engines": {
@@ -51,13 +51,14 @@
     "node-stream-zip": "^1.15.0",
     "nodemailer": "^9.0.1",
     "otplib": "^12.0.1",
+    "p-limit": "^3.1.0",
     "pdf-lib": "^1.17.1",
     "pdfkit": "^0.17.2",
     "pg": "^8.16.3",
-    "postcss": "8.5.18",
+    "postcss": "8.5.23",
     "qrcode": "^1.5.4",
     "react-i18next": "^15.6.0",
-    "sanitize-html": "^2.17.0",
+    "sanitize-html": "2.17.5",
     "sharp": "0.35.3",
     "sqlite3": "^5.1.6",
     "swagger-jsdoc": "^6.2.8",
@@ -84,14 +85,15 @@
     "fast-xml-parser": ">=5.7.0",
     "qs": ">=6.15.2",
     "tar": ">=7.5.21",
-    "brace-expansion": ">=5.0.7",
+    "brace-expansion": ">=5.0.9",
     "minimatch": ">=9.0.7",
     "path-to-regexp": "0.1.13",
     "lodash": ">=4.18.1",
     "follow-redirects": ">=1.16.0",
     "@tootallnate/once": ">=3.0.1",
-    "ip-address": ">=10.1.1",
+    "ip-address": ">=10.3.1",
     "uuid": "^11.1.1",
-    "nodemailer": "^9.0.1"
+    "nodemailer": "^9.0.1",
+    "deepmerge-ts": ">=8.0.1"
   }
 }

backend/scripts/migrate-sqlite-to-postgres.js

@@ -0,0 +1,537 @@
+#!/usr/bin/env node
+'use strict';
+
+/**
+ * Move an install's data from SQLite to PostgreSQL (#1038).
+ *
+ *   node scripts/migrate-sqlite-to-postgres.js [--force] [--keep-archive]
+ *
+ * For installs that have been unknowingly running on SQLite: the image used to
+ * leave NODE_ENV unset, so knexfile.js fell back to its development block and
+ * ignored DB_HOST/DB_USER/DB_PASSWORD. Their galleries live in the SQLite file
+ * while the Postgres database they provisioned sits empty.
+ *
+ * This deliberately reuses the .picpeak export/import services rather than
+ * hand-rolling a cross-engine copy — they already solve the parts that are easy
+ * to get wrong: foreign-key suspension during the load, JSON column handling
+ * per engine, and (critically) resyncing Postgres serial sequences after rows
+ * are inserted with explicit ids.
+ *
+ * Both services bind to the global `db` at require time, so each half runs in
+ * its own child process with DATABASE_CLIENT pinned — this script re-invokes
+ * itself with --phase for that.
+ *
+ * Photos and other files on disk are NOT touched: only database rows move. The
+ * SQLite file is left exactly as it was, so the migration is reversible by
+ * unsetting DATABASE_CLIENT again.
+ */
+
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+const { spawnSync } = require('child_process');
+
+const BACKEND_ROOT = path.resolve(__dirname, '..');
+
+// Same configuration sources the running backend uses. Without these, invoking
+// this CLI directly (or via `docker exec`, which does not inherit the exports
+// wait-for-db.sh performs) would fail the pre-flight checks below even though
+// the child phases would happily read backend/.env through knexfile.
+require('dotenv').config({ path: path.join(BACKEND_ROOT, '.env') });
+for (const [varName, file] of [['DB_PASSWORD', 'db_password'], ['JWT_SECRET', 'jwt_secret']]) {
+  const secretFile = `/run/secrets/${file}`;
+  if (!process.env[varName] && fs.existsSync(secretFile)) {
+    try {
+      process.env[varName] = fs.readFileSync(secretFile, 'utf8').trim();
+    } catch (_) { /* unreadable secret — the checks below report it */ }
+  }
+}
+
+function parseArgs(argv) {
+  return {
+    force: argv.includes('--force'),
+    keepArchive: argv.includes('--keep-archive'),
+    phase: (argv.find((a) => a.startsWith('--phase=')) || '').split('=')[1] || null,
+    archive: (argv.find((a) => a.startsWith('--archive=')) || '').split('=')[1] || null,
+    resultFile: (argv.find((a) => a.startsWith('--result-file=')) || '').split('=')[1] || null,
+    ignoreBootstrapAdmins: argv.includes('--ignore-bootstrap-admins'),
+  };
+}
+
+// Resolve the Postgres target ONCE, with production defaults, and hand the same
+// explicit values to every child. Otherwise the block knexfile happens to pick
+// decides the database name, and the migration can land somewhere the running
+// application will never open (#1038 review).
+function normalisedPgEnv() {
+  const { pgConnectionFromEnv } = require('../src/utils/databaseEngine');
+  const c = pgConnectionFromEnv();
+  return {
+    DB_HOST: String(c.host),
+    DB_PORT: String(c.port),
+    DB_USER: String(c.user),
+    DB_NAME: String(c.database),
+  };
+}
+
+function runPhase(phase, client, extraArgs = []) {
+  // The child's stdout is NOT a private channel: winston logs to the console
+  // outside production and whenever LOG_TO_CONSOLE=true, so the payload comes
+  // back through a file instead.
+  const resultFile = path.join(
+    fs.mkdtempSync(path.join(os.tmpdir(), `picpeak-phase-${phase}-`)), 'result',
+  );
+  try {
+    const res = spawnSync(
+      process.execPath,
+      [__filename, `--phase=${phase}`, `--result-file=${resultFile}`, ...extraArgs],
+      {
+        cwd: BACKEND_ROOT,
+        env: {
+          ...process.env,
+          ...normalisedPgEnv(),
+          DATABASE_CLIENT: client,
+          // Production semantics for the child regardless of how the CLI was
+          // invoked: the development block ignores DB_SSL, so a managed Postgres
+          // that requires TLS could not be migrated into at all.
+          NODE_ENV: 'production',
+        },
+        stdio: ['ignore', 'inherit', 'inherit'],
+        encoding: 'utf8',
+      },
+    );
+    if (res.status !== 0) {
+      throw new Error(`${phase} phase failed (exit ${res.status})`);
+    }
+    return fs.existsSync(resultFile) ? fs.readFileSync(resultFile, 'utf8').trim() : '';
+  } finally {
+    fs.rmSync(path.dirname(resultFile), { recursive: true, force: true });
+  }
+}
+
+// ── phases (each runs in its own process, with DATABASE_CLIENT pinned) ────────
+
+async function phaseExport() {
+  const { createPicpeak } = require('../src/services/picpeakExportService');
+  const outDir = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-sqlite-migration-'));
+  // Rows only. This moves an install between engines on the SAME machine, so
+  // every file is already where it belongs; hauling business docs through /tmp
+  // would just risk filling the temp disk.
+  try {
+    const { filePath } = await createPicpeak({ includePhotos: false, includeFiles: false, outDir });
+    return filePath;
+  } catch (err) {
+    // createPicpeak leaves a caller-supplied outDir alone on failure, and a
+    // partial archive still contains password hashes and credentials.
+    fs.rmSync(outDir, { recursive: true, force: true });
+    throw err;
+  }
+}
+
+// Tables that are EMPTY on a freshly migrated schema, so any row in them means
+// a human has used this install. Used to protect the target from being wiped
+// and to decide whether the source is worth migrating (#1038 review). Tables
+// missing on a given branch are skipped.
+const USER_DATA_TABLES = [
+  'events', 'photos', 'photo_feedback', 'admin_users', 'customer_accounts',
+  'quotes', 'invoices', 'projects', 'expenses', 'inbound_documents',
+];
+
+async function tablesWithData(db, tables, { ignoreBootstrapAdmins = false } = {}) {
+  const { adminsIndicateUse } = require('../src/utils/databaseEngine');
+  const found = {};
+  for (const table of tables) {
+    if (!(await db.schema.hasTable(table))) continue;
+    if (table === 'admin_users' && ignoreBootstrapAdmins) {
+      // Match probePgData: one never-used seeded admin is not "user data", or
+      // the migration would demand --force against an empty target.
+      const cols = ['must_change_password'];
+      if (await db.schema.hasColumn('admin_users', 'last_login')) cols.push('last_login');
+      const rows = await db('admin_users').select(cols);
+      if (adminsIndicateUse(rows)) found[table] = rows.length;
+      continue;
+    }
+    const row = await db(table).count('* as count').first();
+    const count = Number(row?.count || 0);
+    if (count > 0) found[table] = count;
+  }
+  return found;
+}
+
+async function phaseUserData(ignoreBootstrapAdmins) {
+  const { db } = require('../src/database/db');
+  return JSON.stringify(await tablesWithData(db, USER_DATA_TABLES, { ignoreBootstrapAdmins }));
+}
+
+// Fingerprint EVERY table the export carries, not a hand-picked few: writes to
+// an unlisted table were invisible, and count+maxId alone misses in-place
+// UPDATEs (an event edit, a password change). max(updated_at) covers those
+// wherever the column exists. Still not a substitute for stopping the backend —
+// a table with neither `id` nor `updated_at` can be edited unnoticed — which is
+// why the script says so up front.
+async function phaseFingerprint() {
+  const { db } = require('../src/database/db');
+  const { listDataTables } = require('../src/services/picpeakExportService');
+  const out = {};
+  for (const table of await listDataTables()) {
+    const entry = {};
+    try {
+      entry.count = Number((await db(table).count('* as count').first())?.count || 0);
+    } catch (_) {
+      continue; // table vanished mid-run; the export would fail on it anyway
+    }
+    for (const [key, col] of [['maxId', 'id'], ['maxUpdated', 'updated_at']]) {
+      try {
+        const row = await db(table).max(`${col} as v`).first();
+        if (row && row.v !== null && row.v !== undefined) entry[key] = String(row.v);
+      } catch (_) { /* column doesn't exist on this table */ }
+    }
+    out[table] = entry;
+  }
+  return JSON.stringify(out);
+}
+
+async function phaseMigrateSchema() {
+  // runMigrations() exits the process itself (0 on success, 1 on failure), so the
+  // child's exit code is the result — nothing to return.
+  const { runMigrations } = require('../migrations/run-migrations-safe');
+  await runMigrations();
+}
+
+async function phaseImport(archivePath) {
+  const { importFromPicpeak } = require('../src/services/picpeakImportService');
+  // No currentAdminId: this is a CLI, there is no operator session to preserve.
+  // The SQLite install's own admin accounts come across with everything else.
+  // sqlite → pg is allowed by validateManifest's direction policy (#1041) —
+  // the same gate the upload/restore UI uses, no separate opt-in flag.
+  const summary = await importFromPicpeak({ picpeakPath: archivePath });
+  return JSON.stringify(summary || {});
+}
+
+function summariseUserData(found) {
+  return Object.entries(found).map(([t, n]) => `${t}=${n}`).join(', ');
+}
+
+function describeDrift(before, after) {
+  const drifted = [];
+  for (const table of new Set([...Object.keys(before), ...Object.keys(after)])) {
+    const a = before[table] || {};
+    const b = after[table] || {};
+    if (a.count !== b.count) {
+      drifted.push(`${table}: ${a.count ?? 0} rows → ${b.count ?? 0}`);
+    } else if (a.maxId !== b.maxId || a.maxUpdated !== b.maxUpdated) {
+      drifted.push(`${table}: rows edited in place (max id ${a.maxId ?? '-'} → ${b.maxId ?? '-'}, `
+        + `last update ${a.maxUpdated ?? '-'} → ${b.maxUpdated ?? '-'})`);
+    }
+  }
+  return drifted;
+}
+
+// Set once the export exists; every failure path clears it (the archive holds
+// plaintext secrets, so leaving it behind on error is not acceptable).
+let archiveToClean = null;
+
+function cleanupArchive() {
+  if (!archiveToClean) return;
+  try {
+    fs.rmSync(path.dirname(archiveToClean), { recursive: true, force: true });
+  } catch (err) {
+    console.error(`  WARNING: could not remove ${archiveToClean} (${err.message}) — it contains`
+      + ' plaintext secrets, delete it by hand.');
+  }
+  archiveToClean = null;
+}
+
+// ── orchestration ────────────────────────────────────────────────────────────
+
+async function main() {
+  const args = parseArgs(process.argv.slice(2));
+
+  // Child phase. The knex pool holds the event loop open, so finish by flushing
+  // stdout and exiting explicitly — otherwise the parent's spawnSync waits on a
+  // process that will never end by itself.
+  if (args.phase) {
+    const payload = args.phase === 'export' ? await phaseExport()
+      : args.phase === 'fingerprint' ? await phaseFingerprint()
+        : args.phase === 'user-data' ? await phaseUserData(args.ignoreBootstrapAdmins)
+          : args.phase === 'import' ? await phaseImport(args.archive)
+            : await phaseMigrateSchema();
+    if (args.resultFile) fs.writeFileSync(args.resultFile, String(payload ?? ''));
+    // The knex pool holds the event loop open; exit explicitly or the parent's
+    // spawnSync waits on a process that will never end by itself.
+    process.exit(0);
+  }
+
+  const { resolveSqlitePath } = require('../src/utils/databaseEngine');
+  const sqlitePath = resolveSqlitePath();
+
+  console.log('PicPeak — SQLite → PostgreSQL migration\n');
+
+  if (!fs.existsSync(sqlitePath)) {
+    console.error(`No SQLite database at ${sqlitePath}. Nothing to migrate.`);
+    process.exit(1);
+  }
+
+  if (process.env.DATABASE_CLIENT && process.env.DATABASE_CLIENT !== 'pg') {
+    console.error(
+      `This deployment pins DATABASE_CLIENT=${process.env.DATABASE_CLIENT}.\n`
+      + 'After the migration the application must run on PostgreSQL — the SQLite file is\n'
+      + 'renamed out of the way, so a restart with this setting would create a NEW, empty\n'
+      + 'SQLite database and serve that instead of your data.\n\n'
+      + 'Set DATABASE_CLIENT=pg (or remove it) in your deployment, then run this again.'
+    );
+    process.exit(1);
+  }
+
+  // Not a refusal: an unset NODE_ENV is exactly the state the affected installs
+  // are in, and refusing would block the people this script is for. The success
+  // marker makes the boot resolve to Postgres regardless; this just tells the
+  // operator to make it explicit.
+  if (!process.env.DATABASE_CLIENT && require('../knexfile').client !== 'pg') {
+    console.log(
+      'Note: this environment resolves to SQLite (NODE_ENV is not "production" and\n'
+      + 'DATABASE_CLIENT is unset). The migration will still complete and the marker it\n'
+      + 'writes makes the app use PostgreSQL afterwards, but set NODE_ENV=production (or\n'
+      + 'DATABASE_CLIENT=pg) so the configuration says what is actually happening.\n'
+    );
+  }
+
+  if (!process.env.DB_HOST && !process.env.DB_PASSWORD) {
+    console.error(
+      'No PostgreSQL settings found (DB_HOST / DB_PASSWORD). Set them the way the\n'
+      + 'backend does, then re-run this script inside the container.'
+    );
+    process.exit(1);
+  }
+
+  console.log(
+    'Stop the backend before running this. If it keeps serving while the copy runs,\n'
+    + 'anything written after the export is left behind in SQLite and becomes invisible\n'
+    + 'once the engine switches. This script checks for that afterwards and fails loudly,\n'
+    + 'but stopping the container first is the only way to be sure.\n'
+  );
+
+  const sourceData = JSON.parse(runPhase('user-data', 'sqlite3'));
+  console.log(`  source : ${sqlitePath} — ${summariseUserData(sourceData) || 'no user data'}`);
+  if (!Object.keys(sourceData).length) {
+    console.error(
+      '\nThe SQLite database holds no user data at all (no galleries, admins, customers or\n'
+      + 'accounting records). There is nothing to migrate.'
+    );
+    process.exit(1);
+  }
+  const sqliteBefore = JSON.parse(runPhase('fingerprint', 'sqlite3'));
+
+  // Read the target BEFORE creating the schema: migration 001 seeds a bootstrap
+  // admin when ADMIN_PASSWORD is set (common on legacy installs), and counting
+  // that as "user data" would refuse a migration into a genuinely empty
+  // database — pushing the operator towards --force for no reason.
+  const { hasMigrationInProgress, migrationInProgressPath } = require('../src/utils/databaseEngine');
+  // The retry allowance is bound to the TARGET, not just to this SQLite file:
+  // if the operator repointed DB_HOST/DB_NAME since the failed attempt, the
+  // rows in front of us belong to some other database and must not be replaced
+  // without an explicit --force.
+  const pgEnv = normalisedPgEnv();
+  const targetId = `${pgEnv.DB_HOST}:${pgEnv.DB_PORT}/${pgEnv.DB_NAME}`;
+  let retryingOwnRun = false;
+  if (hasMigrationInProgress(sqlitePath)) {
+    try {
+      const pin = JSON.parse(fs.readFileSync(migrationInProgressPath(sqlitePath), 'utf8'));
+      retryingOwnRun = pin.target === targetId;
+      if (!retryingOwnRun) {
+        console.log(`  (an earlier attempt targeted ${pin.target}; this run targets ${targetId})`);
+      }
+    } catch (_) {
+      retryingOwnRun = false; // unreadable pin — treat as unknown, require --force
+    }
+  }
+  const targetData = JSON.parse(runPhase('user-data', 'pg', ['--ignore-bootstrap-admins']));
+  console.log(`  target : postgres — ${summariseUserData(targetData) || 'empty'}`);
+  if (retryingOwnRun && Object.keys(targetData).length) {
+    // Whatever is in Postgres came from a previous attempt of THIS script that
+    // never completed — re-running is the documented recovery, so don't make
+    // the operator reach for a destructive-sounding flag to do it.
+    console.log('  (an earlier migration did not finish; re-running replaces what it left behind)');
+  } else if (Object.keys(targetData).length && !args.force) {
+    console.error(
+      `\nPostgreSQL already holds user data (${summariseUserData(targetData)}).\n`
+      + 'The import REPLACES every table, so this would delete it — including admins,\n'
+      + 'customers and accounting records that have no galleries attached.\n'
+      + 'Re-run with --force only if you are certain you want that data gone.'
+    );
+    process.exit(1);
+  }
+
+  // Pin the boot to SQLite for the duration. Everything below writes to
+  // Postgres — schema creation alone seeds a bootstrap admin when
+  // ADMIN_PASSWORD is set — and a run that dies half way would otherwise leave
+  // Postgres looking occupied enough for the next restart to switch to it.
+  const inProgress = migrationInProgressPath(sqlitePath);
+  fs.writeFileSync(inProgress, JSON.stringify({
+    started_at: new Date().toISOString(),
+    target: targetId,
+  }, null, 2));
+
+  // Now build the schema — the import replaces table CONTENTS, it never creates
+  // them, and a fresh database has no tables at all.
+  //
+  // core/001_init.js writes data/ADMIN_CREDENTIALS.txt when ADMIN_PASSWORD is
+  // set, and that data directory belongs to the SOURCE install — so bootstrapping
+  // the schema would replace the operator's real credentials file with ones for
+  // a temporary admin the import then discards. Preserve it across the phase.
+  const credFile = path.join(BACKEND_ROOT, 'data', 'ADMIN_CREDENTIALS.txt');
+  const credBefore = fs.existsSync(credFile) ? fs.readFileSync(credFile) : null;
+  console.log('\n  Preparing PostgreSQL schema…');
+  try {
+    runPhase('migrate-schema', 'pg');
+  } finally {
+    if (credBefore !== null) fs.writeFileSync(credFile, credBefore);
+    else fs.rmSync(credFile, { force: true });
+  }
+
+  console.log('\n  Exporting rows from SQLite…');
+  const archive = runPhase('export', 'sqlite3');
+  // From here on, every exit path must remove the archive: it holds password
+  // hashes, SMTP credentials and API keys in plaintext.
+  archiveToClean = args.keepArchive ? null : archive;
+  const sizeMb = (fs.statSync(archive).size / 1024 / 1024).toFixed(1);
+  console.log(`  archive: ${archive} (${sizeMb} MB)`);
+
+  // Check BEFORE touching Postgres: if the backend wrote to SQLite while the
+  // export ran, the snapshot is already incomplete and there is no reason to
+  // load it. Bailing here leaves Postgres exactly as it was.
+  const driftDuringExport = describeDrift(sqliteBefore, JSON.parse(runPhase('fingerprint', 'sqlite3')));
+  if (driftDuringExport.length) {
+    console.error(
+      '\nSQLite CHANGED WHILE THE EXPORT RAN — the backend is still writing to it:\n'
+      + driftDuringExport.map((d) => `  ${d}`).join('\n')
+      + '\n\nNothing was loaded into Postgres, and this install stays pinned to SQLite\n'
+      + 'until a run completes. Stop the backend and run this again.'
+    );
+    process.exit(1);
+  }
+
+  console.log('\n  Loading into PostgreSQL…');
+  runPhase('import', 'pg', [`--archive=${archive}`]);
+
+  // And again afterwards: writes can also land while the load runs, and those
+  // rows would vanish from view the moment the engine switches.
+  const driftDuringImport = describeDrift(sqliteBefore, JSON.parse(runPhase('fingerprint', 'sqlite3')));
+  if (driftDuringImport.length) {
+    console.error(
+      '\nSQLite CHANGED WHILE THE IMPORT RAN — the backend is still writing to it:\n'
+      + driftDuringImport.map((d) => `  ${d}`).join('\n')
+      + '\n\nPostgres now holds an incomplete copy. Your SQLite data is intact and stays\n'
+      + 'the one being served — the boot is pinned to it until a run completes. Stop the\n'
+      + 'backend and run this again; the import replaces every table, so re-running is safe.'
+    );
+    process.exit(1);
+  }
+
+  // Row-for-row comparison of the whole database, not just galleries: every
+  // table the export carried must have arrived with the same row count.
+  const targetAfter = JSON.parse(runPhase('fingerprint', 'pg'));
+  // Only a SHORTFALL is a problem. The import legitimately adds rows of its own
+  // afterwards — setSessionsValidAfter() writes an app_settings row so tokens
+  // minted before the restore stop authenticating — and a target that gained
+  // rows has not lost anything.
+  const missing = [];
+  const gained = [];
+  const skipped = [];
+  for (const [table, src] of Object.entries(sqliteBefore)) {
+    const dst = targetAfter[table];
+    if (!dst) {
+      // SQLite-only tables exist: initializeDatabase() builds an `events_new`
+      // scratch table and, if its legacy copy throws, the catch leaves the empty
+      // table behind (db.js). The importer correctly skips tables Postgres does
+      // not have — so an ABSENT table only matters if it actually held rows.
+      // Flagging empty ones failed the whole migration after the data had
+      // already landed, leaving the install pinned to SQLite forever.
+      if (src.count > 0) missing.push(`${table}: ${src.count} rows, no such table in Postgres`);
+      else skipped.push(table);
+      continue;
+    }
+    if (dst.count < src.count) missing.push(`${table}: ${src.count} rows → ${dst.count}`);
+    else if (dst.count > src.count) gained.push(`${table}: ${src.count} → ${dst.count}`);
+  }
+  if (skipped.length) {
+    console.log(`  (empty SQLite-only tables with no Postgres counterpart, skipped: ${skipped.join(', ')})`);
+  }
+  if (gained.length) console.log(`  (rows added by the import itself: ${gained.join(', ')})`);
+  console.log(`\n  PostgreSQL now holds ${summariseUserData(JSON.parse(runPhase('user-data', 'pg')))}.`);
+
+  if (missing.length) {
+    console.error(
+      '\nROW COUNTS DO NOT MATCH — Postgres did not receive everything:\n'
+      + missing.map((m) => `  ${m}`).join('\n')
+      + '\n\nYour SQLite data is untouched and stays the one being served — the boot is\n'
+      + 'pinned to it until a run completes. Report this with the list above.'
+    );
+    process.exit(1);
+  }
+
+  // Pin the engine choice so a later "Postgres looks empty" moment can never
+  // send the install back to this now-stale file.
+  const { migrationMarkerPath } = require('../src/utils/databaseEngine');
+  const marker = migrationMarkerPath(sqlitePath);
+  const retired = `${sqlitePath}.pre-postgres-${new Date().toISOString().replace(/[:.]/g, '-')}`;
+
+  // Marker FIRST, rename second. The other order has a window where a failure
+  // (a full disk, say) leaves the source renamed away with no success marker:
+  // the next run reports "No SQLite database", the in-progress pin is still
+  // there, and the operator never sees the rollback path. Writing the marker
+  // first means a failure here leaves everything exactly where it was.
+  fs.writeFileSync(marker, JSON.stringify({
+    migrated_at: new Date().toISOString(),
+    retired_sqlite_file: null,
+    target: targetId,
+  }, null, 2));
+
+  let retiredTo = null;
+  try {
+    fs.renameSync(sqlitePath, retired);
+    retiredTo = retired;
+    fs.writeFileSync(marker, JSON.stringify({
+      migrated_at: new Date().toISOString(),
+      retired_sqlite_file: retiredTo,
+      target: targetId,
+    }, null, 2));
+  } catch (err) {
+    // The marker already pins the engine to Postgres, so leaving the file in
+    // place is safe — it just is not renamed out of the way.
+    console.log(`  (could not rename the SQLite file: ${err.message} — leaving it in place)`);
+  }
+  // Success — release the pin. Order matters: the success marker exists before
+  // the pin is dropped, so no restart in between can pick the wrong engine.
+  fs.rmSync(inProgress, { force: true });
+
+  if (args.keepArchive) {
+    console.log(`  archive kept at ${archive} — it contains plaintext secrets, delete it when done`);
+  } else {
+    cleanupArchive();
+  }
+
+  console.log(`
+Done. Your data is now in PostgreSQL.
+
+  rollback copy : ${retiredTo || sqlitePath}
+  marker        : ${marker}
+
+Restart the container to pick up PostgreSQL. Keep the rollback copy until you
+have confirmed the galleries look right.
+
+To roll back, all three steps are needed — with data on both sides the boot
+picks PostgreSQL, so restoring the file alone changes nothing:
+
+  1. rm ${marker}
+  2. mv ${retiredTo || sqlitePath} ${sqlitePath}
+  3. set DATABASE_CLIENT=sqlite3 in your deployment
+`);
+}
+
+process.on('exit', cleanupArchive);
+
+main().catch((err) => {
+  console.error(`\nMigration failed: ${err.message}`);
+  console.error('Nothing was changed in SQLite; your data is still there.');
+  process.exit(1);
+});

backend/scripts/resolve-db-engine.js

@@ -0,0 +1,51 @@
+#!/usr/bin/env node
+'use strict';
+
+/**
+ * Prints the database client this boot should use — `pg` or `sqlite3` — for
+ * wait-for-db.sh to export as DATABASE_CLIENT (#1038).
+ *
+ * Runs BEFORE the migration step on purpose: the decision has to be made while
+ * the Postgres target is still untouched, so an install that has been
+ * unknowingly running on SQLite keeps serving from its SQLite file instead of
+ * coming up against an empty database.
+ *
+ * stdout is the client and nothing else — the caller captures it. Everything
+ * human-readable goes to stderr so it lands in the container log.
+ */
+
+const knexConfig = require('../knexfile');
+
+// Must cover every level resolveBootEngine uses. An incomplete shim threw
+// inside the conflict path, was swallowed by the catch below, and fell back to
+// the configured client — silently choosing the engine this is meant to refuse
+// to choose.
+const logger = {
+  info: (m) => process.stderr.write(`${m}\n`),
+  warn: (m) => process.stderr.write(`${m}\n`),
+  error: (m) => process.stderr.write(`${m}\n`),
+  debug: () => {},
+};
+
+// Distinct exit code for "two populated databases, no record of which is
+// current" (#1038). Callers must stop rather than pick one.
+const CONFLICT_EXIT = 3;
+
+(async () => {
+  let client = knexConfig.client;
+  try {
+    const { resolveBootEngine } = require('../src/utils/databaseEngine');
+    const decision = await resolveBootEngine({ knexConfig, logger });
+    if (decision.reason === 'ambiguous-both-populated'
+        || decision.reason === 'marker-target-mismatch') {
+      process.exit(CONFLICT_EXIT);
+    }
+    ({ client } = decision);
+  } catch (err) {
+    // Never let engine detection stop a boot: fall back to whatever knexfile
+    // resolved, which is exactly the behaviour before this script existed.
+    logger.warn(`Database engine detection failed (${err.message}); using ${client}`);
+  }
+  process.stdout.write(String(client || ''));
+  process.exit(0);
+})();

backend/scripts/set-admin-password.js

@@ -14,17 +14,14 @@ const bcrypt = require('bcrypt');
 const path = require('path');
 require('dotenv').config({ path: path.join(__dirname, '../.env') });
 
-const knex = require('knex');
-const db = knex({
-  client: process.env.DB_CLIENT || 'pg',
-  connection: {
-    host: process.env.DB_HOST || 'localhost',
-    port: process.env.DB_PORT || 5432,
-    user: process.env.DB_USER || 'picpeak',
-    password: process.env.DB_PASSWORD || 'picpeak',
-    database: process.env.DB_NAME || 'picpeak_dev'
-  }
-});
+// Use the application's own connection, like every sibling script here
+// (reset-admin-password, create-admin, show-admin-credentials, reset-admin-mfa).
+// This file used to hand-roll its own knex config, which meant: it read
+// DB_CLIENT — a variable nothing else in the codebase sets — and so defaulted
+// to Postgres on SQLite installs; and it defaulted to database `picpeak_dev`,
+// a name no other component uses. Setting a password could therefore silently
+// target a different database than the one the application serves (#1038).
+const { db } = require('../src/database/db');
 
 /**
  * Validate password strength
@@ -111,8 +108,10 @@ async function setAdminPassword() {
       .where('username', 'admin')
       .update({
         password_hash: hashedPassword,
-        password_changed_at: new Date(),
-        updated_at: new Date()
+        // ISO strings, not Date objects — they round-trip on both engines, and
+        // this script now runs on SQLite installs too.
+        password_changed_at: new Date().toISOString(),
+        updated_at: new Date().toISOString()
       });
 
     if (updated === 0) {

backend/server.js

@@ -4,11 +4,61 @@ require('dotenv').config();
 const { validateEnvironment } = require('./src/config/validateEnv');
 validateEnvironment();
 
+// Resolve which database engine this process should use, BEFORE anything
+// requires knexfile/db (#1038). wait-for-db.sh normally does this and exports
+// DATABASE_CLIENT, but a Kubernetes manifest that sets `command`/`args`, or a
+// plain `docker run … node server.js`, bypasses the entrypoint entirely — and
+// those are exactly the deployments this fix is for. Without this, such an
+// install would resolve to Postgres (NODE_ENV is baked into the image now) and
+// come up against an empty database while its SQLite data sat there unseen.
+//
+// spawnSync because the decision needs an async Postgres probe and this must
+// happen before the first `require` of knexfile. It short-circuits without
+// probing when DATABASE_CLIENT is already set, so the entrypoint path pays
+// nothing.
+// Also run it when a migration pin exists: an explicit DATABASE_CLIENT=pg
+// would otherwise skip the check and start against a half-migrated Postgres
+// while SQLite is still the database of record.
+if (!process.env.DATABASE_CLIENT
+    || require('./src/utils/databaseEngine').hasMigrationInProgress()) {
+  const { spawnSync } = require('child_process');
+  const probe = spawnSync(
+    process.execPath,
+    [require('path').join(__dirname, 'scripts', 'resolve-db-engine.js')],
+    { encoding: 'utf8', stdio: ['ignore', 'pipe', 'inherit'] }
+  );
+  // Exit 3: two populated databases and no record of which is authoritative.
+  // The resolver has printed the comparison and the two ways to resolve it;
+  // starting either engine would hide the other's data.
+  if (probe.status === 3) {
+    process.exit(1);
+  }
+  const resolved = (probe.stdout || '').trim();
+  if (probe.status === 0 && resolved) {
+    process.env.DATABASE_CLIENT = resolved;
+    // Pin the CONNECTION too, not just the client. knexfile's development block
+    // defaults Postgres to localhost/postgres/photo_sharing and production to
+    // db/picpeak/picpeak, so naming only the client can point this process at a
+    // different database than the resolver probed — with SQLite already retired.
+    if (resolved === 'pg') {
+      const conn = require('./src/utils/databaseEngine').pgConnectionFromEnv();
+      process.env.DB_HOST = String(conn.host);
+      process.env.DB_PORT = String(conn.port);
+      process.env.DB_USER = String(conn.user);
+      process.env.DB_NAME = String(conn.database);
+    }
+  }
+}
+
 // Initialize logger early to capture startup logs
 const logger = require('./src/utils/logger');
 logger.info('Server starting up', {
   nodeVersion: process.version,
   environment: process.env.NODE_ENV || 'development',
+  // Which database this process actually talks to (#1038). Nothing logged this
+  // before, so an install silently running on SQLite with Postgres configured
+  // had no way to notice.
+  database: require('./src/utils/databaseEngine').describeEngine(require('./knexfile')),
   timestamp: new Date().toISOString()
 });
 
@@ -1005,8 +1055,15 @@ async function startServer() {
     // Runs AFTER install-from-backup so a restored instance (which repopulates
     // admin_users) never prints a throwaway token. Best-effort — never blocks boot.
     let setupToken = null;
+    let setupTokenFile = null;
     try {
-      setupToken = await require('./src/services/setupService').ensureSetupToken();
+      const setupSvc = require('./src/services/setupService');
+      setupToken = await setupSvc.ensureSetupToken();
+      // The path the write ACTUALLY produced (null when it failed). existsSync
+      // on the candidate answered a different question and reported success
+      // for a stale, read-only or directory-shaped SETUP_TOKEN — suppressing
+      // the token here while pointing the operator at content that is not it.
+      setupTokenFile = setupSvc.writtenSetupTokenFile();
     } catch (err) {
       logger.warn(`[setup] ensureSetupToken skipped: ${err.message}`);
     }
@@ -1026,12 +1083,17 @@ async function startServer() {
       logger.info(`Server running on port ${PORT}`);
       logger.info(`Admin interface: ${process.env.ADMIN_URL || 'http://localhost:3000'}`);
       logger.info(`Frontend: ${process.env.FRONTEND_URL || 'http://localhost:3001'}`);
-      // First-run: print the one-time setup token to STDOUT (the file logger
-      // doesn't reach `docker logs`), as the last + most visible thing at boot.
+      // First-run banner. Print the TOKEN ITSELF only when the 0600 token file
+      // could not be written — otherwise this lands a live first-admin
+      // credential in `docker logs` / journald, which is the leak GHSA-r794's
+      // sweep turned up. When the file exists we point at it instead.
       if (setupToken) {
         const url = `${process.env.ADMIN_URL || 'http://localhost:3000'}/admin`;
         const line = '='.repeat(64);
-        console.log(`\n${line}\n  PicPeak first-run setup — no admin account yet.\n  Open:                  ${url}\n  One-time setup token:  ${setupToken}\n  (also saved to data/SETUP_TOKEN)\n${line}\n`);
+        const secretLine = setupTokenFile
+          ? `  Setup token saved to:  ${setupTokenFile}\n  (read it there — deliberately not printed)`
+          : `  One-time setup token:  ${setupToken}\n  (could not write the token file, so it is shown here)`;
+        console.log(`\n${line}\n  PicPeak first-run setup — no admin account yet.\n  Open:                  ${url}\n${secretLine}\n${line}\n`);
       }
     });
   } catch (error) {

backend/src/__tests__/publicSiteService.test.js

@@ -52,7 +52,11 @@ describe('publicSiteService', () => {
     const payload = await getPublicSitePayload({ bypassCache: true });
 
     expect(payload.enabled).toBe(true);
-    expect(payload.html).toContain('<h1>Willow & Pine Studio</h1>');
+    // Brand tokens are HTML-escaped on substitution now (GHSA-j347), so a bare
+    // `&` in the company name is emitted as the `&amp;` entity. That renders
+    // identically in a browser — it is the correctly-encoded form — but the raw
+    // payload string differs from the pre-fix output.
+    expect(payload.html).toContain('<h1>Willow &amp; Pine Studio</h1>');
     expect(payload.html).not.toContain('<script');
     expect(payload.baseCss.length).toBeGreaterThan(0);
     expect(payload.branding.companyName).toBe('Willow & Pine Studio');

backend/src/middleware/apiTokenAuth.js

@@ -1,5 +1,7 @@
 const crypto = require('crypto');
 const { db } = require('../database/db');
+const { formatBoolean } = require('../utils/dbCompat');
+const { isMissingRolesSchema } = require('../utils/dbErrors');
 const logger = require('../utils/logger');
 
 const TOKEN_PREFIX = 'pp_live_';
@@ -63,10 +65,36 @@ async function apiTokenAuth(req, res, next) {
       return res.status(401).json({ error: 'Token expired', code: 'TOKEN_EXPIRED' });
     }
 
-    const admin = await db('admin_users')
-      .where({ id: row.created_by, is_active: true })
-      .select('id', 'username', 'email', 'role_id')
-      .first();
+    // Load the owner WITH their role name (GHSA-9697). Without it,
+    // req.admin.roleName was undefined — and every ownership check keys on
+    // roleName — so the v1 surface could not tell a super_admin from a
+    // demoted viewer. Mirrors adminAuth's shape, including the
+    // roles-table-missing fallback used during upgrades.
+    let admin;
+    try {
+      admin = await db('admin_users')
+        .leftJoin('roles', 'roles.id', 'admin_users.role_id')
+        .where({ 'admin_users.id': row.created_by, 'admin_users.is_active': formatBoolean(true) })
+        .select(
+          'admin_users.id',
+          'admin_users.username',
+          'admin_users.email',
+          'roles.id as role_id',
+          'roles.name as role_name'
+        )
+        .first();
+    } catch (joinError) {
+      // Fail CLOSED on anything that isn't a genuinely missing roles schema:
+      // the fallback fabricates super_admin, so a transient query failure must
+      // not become a free privilege upgrade. Rethrow → outer catch → 500.
+      if (!isMissingRolesSchema(joinError)) throw joinError;
+      logger.debug('Roles table not available in apiTokenAuth', { error: joinError.message });
+      admin = await db('admin_users')
+        .where({ id: row.created_by, is_active: formatBoolean(true) })
+        .select('id', 'username', 'email', 'role_id')
+        .first();
+      if (admin) admin.role_name = 'super_admin'; // upgrade-path parity with adminAuth
+    }
     if (!admin) {
       return res.status(401).json({ error: 'Token owner unavailable', code: 'OWNER_INACTIVE' });
     }
@@ -75,7 +103,15 @@ async function apiTokenAuth(req, res, next) {
     db('api_tokens').where({ id: row.id }).update({ last_used_at: new Date() })
       .catch((err) => logger.debug('api_tokens last_used update failed', { err: err.message }));
 
-    req.admin = admin;
+    // Same shape adminAuth produces, so requirePermission / ownership helpers
+    // behave identically whether the caller used a session or an API token.
+    req.admin = {
+      id: admin.id,
+      username: admin.username,
+      email: admin.email,
+      roleId: admin.role_id,
+      roleName: admin.role_name
+    };
     req.apiToken = {
       id: row.id,
       name: row.name,
@@ -118,6 +154,7 @@ module.exports = {
   generateApiToken,
   hashToken,
   parseScopes,
+  isMissingRolesSchema,
   TOKEN_PREFIX,
   VALID_SCOPES
 };

backend/src/middleware/auth.js

@@ -1,6 +1,7 @@
 const jwt = require('jsonwebtoken');
 const { db } = require('../database/db');
 const { formatBoolean } = require('../utils/dbCompat');
+const { isMissingRolesSchema } = require('../utils/dbErrors');
 const { isTokenRevoked } = require('../utils/tokenRevocation');
 const logger = require('../utils/logger');
 const { getAdminTokenFromRequest, getGalleryTokenFromRequest } = require('../utils/tokenUtils');
@@ -75,6 +76,14 @@ async function adminAuth(req, res, next) {
         )
         .first();
     } catch (joinError) {
+      // Fail CLOSED on anything that isn't a genuinely missing roles schema:
+      // the fallback below fabricates super_admin, so a transient query failure
+      // (connection reset, deadlock, statement timeout, pool exhaustion) must
+      // not become a free privilege upgrade for every scoped admin. Rethrow →
+      // outer catch → 401, which is already how a transient DB fault in this
+      // try block behaves (isTokenRevoked hits the DB here). apiTokenAuth takes
+      // the same posture on the v1 surface, differing only in its 500.
+      if (!isMissingRolesSchema(joinError)) throw joinError;
       // Fallback: roles table may not exist yet during upgrade
       // Query without role join - user will have no role info but can still authenticate
       logger.debug('Roles table not available, falling back to basic auth', { error: joinError.message });

backend/src/middleware/ownership.js

@@ -32,6 +32,20 @@ function requireEventOwnership(req, res, next) {
     });
 }
 
+/**
+ * Apply the ownership predicate to a knex query over `events`, for list
+ * endpoints that can't use requireEventOwnership (no :id to check).
+ * super_admin is unrestricted; everyone else sees ownerless (legacy/system)
+ * events plus their own — the same rule requireEventOwnership enforces
+ * per-row.
+ */
+function scopeEventsQuery(query, admin, column = 'created_by') {
+  if (admin?.roleName === 'super_admin') {
+    return query;
+  }
+  return query.where((q) => q.whereNull(column).orWhere(column, admin.id));
+}
+
 /**
  * Return the subset of `eventIds` the admin may act on, mirroring
  * requireEventOwnership for bulk routes that can't use it (they take an
@@ -64,4 +78,88 @@ async function filterOwnedEventIds(admin, eventIds) {
   return { allowed, denied };
 }
 
-module.exports = { requireEventOwnership, filterOwnedEventIds };
+/**
+ * Knex subquery selecting the ids of projects `admin` may act on, or `null`
+ * when the caller is unrestricted (GHSA-wrg5).
+ *
+ * Rules, in priority order:
+ *   1. A project's STORED owner is authoritative. If `projects.created_by` is
+ *      set to a live admin, only that admin (and super_admin) may act on it.
+ *      Earlier this union'd in "any linked event I can see", which meant one
+ *      legacy ownerless event inside another admin's project exposed the whole
+ *      project — its other events, invoices and emails — through the overview.
+ *   2. Only when there is NO usable stored owner (NULL, or pointing at a
+ *      deleted admin) do we derive from linked events, and then EVERY linked
+ *      event must be accessible: a project the old unrestricted routes filled
+ *      with several admins' events is ambiguous, and migration 167 deliberately
+ *      leaves those NULL. Granting on "any" would have made exactly those
+ *      mixed projects readable by everyone.
+ *   3. A project with no usable owner AND no linked events (an orphan — not
+ *      creatable since createProject stamps created_by) stays super_admin-only.
+ *      Failing closed beats failing open; a super_admin can reassign it.
+ *
+ * Returned as a subquery so callers avoid materialising an id list.
+ */
+function ownedProjectsSubquery(admin) {
+  if (admin?.roleName === 'super_admin') return null;
+
+  const linkedEvents = () => db('events').select(db.raw('1')).whereRaw('events.project_id = projects.id');
+
+  return db('projects').select('projects.id').where((w) => {
+    w.where('projects.created_by', admin.id)
+      .orWhere((noOwner) => {
+        noOwner
+          // No usable stored owner: NULL, or a creator that no longer exists
+          // (hard-deleted admin) — otherwise that project would be locked away
+          // from everyone but super_admin forever.
+          .where((c) => c
+            .whereNull('projects.created_by')
+            .orWhereNotIn('projects.created_by', db('admin_users').select('id')))
+          .whereExists(linkedEvents())
+          .whereNotExists(
+            linkedEvents().whereNotNull('events.created_by').whereNot('events.created_by', admin.id),
+          );
+      });
+  });
+}
+
+/**
+ * Materialised form of ownedProjectsSubquery, for callers that need the ids
+ * themselves. `null` = unrestricted.
+ *
+ * @returns {Promise<number[]|null>}
+ */
+async function ownedProjectIds(admin) {
+  const sub = ownedProjectsSubquery(admin);
+  if (sub === null) return null;
+  const rows = await sub;
+  return rows.map((r) => Number(r.id));
+}
+
+/**
+ * Middleware enforcing ownedProjectIds() on a :id project route. 404 (not 403)
+ * on a foreign project so the endpoint isn't an existence oracle — same
+ * posture filterOwnedEventIds takes for foreign-vs-missing ids.
+ */
+function requireProjectOwnership(req, res, next) {
+  const sub = ownedProjectsSubquery(req.admin);
+  if (sub === null) return next();
+  const projectId = Number(req.params.id);
+  sub.clone()
+    .where('projects.id', projectId)
+    .first()
+    .then((row) => {
+      if (!row) return res.status(404).json({ error: 'Project not found' });
+      next();
+    })
+    .catch(() => res.status(500).json({ error: 'Failed to verify project ownership' }));
+}
+
+module.exports = {
+  requireEventOwnership,
+  filterOwnedEventIds,
+  scopeEventsQuery,
+  ownedProjectIds,
+  ownedProjectsSubquery,
+  requireProjectOwnership,
+};

backend/src/middleware/photoAuth.js

@@ -3,6 +3,7 @@ const jwt = require('jsonwebtoken');
 const { db } = require('../database/db');
 const { formatBoolean } = require('../utils/dbCompat');
 const { getGalleryTokenFromRequest } = require('../utils/tokenUtils');
+const { isTokenRevoked } = require('../utils/tokenRevocation');
 const logger = require('../utils/logger');
 
 async function photoAuth(req, res, next) {
@@ -89,7 +90,33 @@ async function photoAuth(req, res, next) {
         
         // Check if it's an admin token (admins can view all photos)
         if (decoded.type === 'admin') {
-          // For both thumbnails and photos with admin token, allow access
+          // Enforce the same revocation / session-cutoff invalidation that
+          // adminAuth does — otherwise a validly-signed admin JWT keeps
+          // serving photos after logout, password change, or explicit
+          // revocation (GHSA-x55x).
+          if (await isTokenRevoked(decoded)) {
+            return res.status(401).json({ error: 'Session expired' });
+          }
+          // adminAuth also (a) rejects tokens for a now-deactivated admin and
+          // (b) rejects any token minted before the admin's last password
+          // change. Token revocation alone doesn't cover those, so without
+          // these two checks a stale or pre-password-change admin token still
+          // fetches every photo.
+          const admin = await db('admin_users')
+            .where({ id: decoded.id, is_active: formatBoolean(true) })
+            .select('id', 'password_changed_at')
+            .first();
+          if (!admin) {
+            return res.status(401).json({ error: 'Session expired' });
+          }
+          if (admin.password_changed_at) {
+            const passwordChangedSeconds = Math.floor(
+              new Date(admin.password_changed_at).getTime() / 1000
+            );
+            if (decoded.iat < passwordChangedSeconds) {
+              return res.status(401).json({ error: 'Session expired' });
+            }
+          }
           return next();
         }
     } catch (err) {

backend/src/routes/adminApiTokens.js

@@ -19,7 +19,10 @@ const router = express.Router();
 // the plaintext, never recoverable after creation.
 router.get('/', adminAuth, requirePermission('settings.view'), async (req, res) => {
   try {
-    const tokens = await db('api_tokens')
+    // Scope to the caller's own tokens unless super_admin — the previous
+    // query returned every admin's token metadata (name/preview/scopes/
+    // owner) to any settings.view holder (GHSA-jm7j).
+    const tokensQuery = db('api_tokens')
       .leftJoin('admin_users', 'admin_users.id', 'api_tokens.created_by')
       .select(
         'api_tokens.id',
@@ -33,6 +36,10 @@ router.get('/', adminAuth, requirePermission('settings.view'), async (req, res)
         'admin_users.username as owner_username'
       )
       .orderBy('api_tokens.created_at', 'desc');
+    if (req.admin.roleName !== 'super_admin') {
+      tokensQuery.where('api_tokens.created_by', req.admin.id);
+    }
+    const tokens = await tokensQuery;
     res.json(tokens);
   } catch (error) {
     logger.error('Failed to list API tokens', { error: error.message });
@@ -101,6 +108,12 @@ router.delete('/:id', adminAuth, requirePermission('settings.edit'), async (req,
     const { id } = req.params;
     const row = await db('api_tokens').where({ id }).first();
     if (!row) return res.status(404).json({ error: 'Token not found' });
+    // Only the token's owner (or a super_admin) may revoke it — otherwise
+    // any settings.edit holder could revoke another admin's tokens
+    // (GHSA-gprq). 404 rather than 403 so a non-owner can't probe token ids.
+    if (req.admin.roleName !== 'super_admin' && row.created_by !== req.admin.id) {
+      return res.status(404).json({ error: 'Token not found' });
+    }
     if (row.revoked_at) return res.status(400).json({ error: 'Token already revoked' });
 
     await db('api_tokens').where({ id }).update({ revoked_at: new Date() });

backend/src/routes/adminAuth.js

@@ -8,7 +8,7 @@ const { endSession } = require('../middleware/sessionTimeout');
 const { validatePasswordStrength } = require('../utils/passwordGenerator');
 const { handleAsync, validateRequest, successResponse } = require('../utils/routeHelpers');
 const { NotFoundError, ConflictError, ValidationError } = require('../utils/errors');
-const { setAdminAuthCookie } = require('../utils/tokenUtils');
+const { setAdminAuthCookie, clearAdminAuthCookie } = require('../utils/tokenUtils');
 const { IDENTITY_PRESERVING_NORMALIZE_EMAIL } = require('../utils/emailNormalization');
 const mfaService = require('../services/mfaService');
 const router = express.Router();
@@ -168,12 +168,21 @@ router.post('/change-password', [
 
 // Logout
 router.post('/logout', adminAuth, handleAsync(async (req, res) => {
-  // Get token from header
-  const token = req.headers.authorization?.split(' ')[1];
+  // Use the token adminAuth actually authenticated with (req.token) — it may
+  // have come from the admin_token cookie, not the Authorization header. The
+  // old header-only read skipped revocation entirely for cookie-based logout,
+  // leaving the JWT valid until expiry while reporting a successful logout.
+  const token = req.token;
   if (token) {
-    // End the session
+    // End the in-memory session AND revoke the JWT (GHSA-cjqh) — the token
+    // is otherwise valid until expiry, so photoAuth/adminAuth would keep
+    // honouring it after logout. isTokenRevoked() checks this store.
     endSession(token);
+    const { revokeToken } = require('../utils/tokenRevocation');
+    await revokeToken(token, 'logout');
   }
+  // Clear the auth cookie so the browser stops sending the (now revoked) JWT.
+  clearAdminAuthCookie(res);
 
   // Log activity
   await logActivity('admin_logout',

backend/src/routes/adminBackup.js

@@ -57,14 +57,33 @@ router.put('/config', adminAuth, requirePermission('backup.create'), async (req,
         }
         break;
       case 's3':
-        if (!updates.backup_s3_endpoint || !updates.backup_s3_bucket || 
+        if (!updates.backup_s3_endpoint || !updates.backup_s3_bucket ||
               !updates.backup_s3_access_key || !updates.backup_s3_secret_key) {
           return res.status(400).json({ error: 'S3 backup requires endpoint, bucket, and credentials' });
         }
         break;
       }
     }
-    
+
+    // SSRF: validate an S3 endpoint whenever one is supplied — NOT only when
+    // the payload also flips backup_destination_type to 's3'. The PUT
+    // persists every backup_* field independently, so with S3 already
+    // selected a caller could PATCH just backup_s3_endpoint to a
+    // private-resolving host; the management ops (manifest, bucket/file
+    // browse, cleanup, test-upload) then connect without going through
+    // testConnection. Prod-only; dev points at localhost MinIO deliberately.
+    if (process.env.NODE_ENV === 'production'
+        && updates.backup_s3_endpoint && updates.backup_s3_endpoint !== '••••••••') {
+      const rawEndpoint = updates.backup_s3_endpoint;
+      const withProto = /^https?:\/\//.test(rawEndpoint) ? rawEndpoint : `https://${rawEndpoint}`;
+      let epHost = null;
+      try { epHost = new URL(withProto).hostname; } catch { epHost = null; }
+      const { isHostAllowed } = require('../utils/networkValidation');
+      if (!epHost || !(await isHostAllowed(epHost))) {
+        return res.status(400).json({ error: 'S3 endpoint resolves to a private or internal network address' });
+      }
+    }
+
     // Update settings
     for (const [key, value] of Object.entries(updates)) {
       if (key.startsWith('backup_')) {
@@ -221,6 +240,7 @@ router.post('/picpeak/import', adminAuth, requirePermission('backup.restore'), p
       tables: result.tables,
       filesRestored: result.filesRestored,
       usesExternalMedia: result.usesExternalMedia,
+      crossEngine: result.crossEngine,
       sessionInvalidated: true,
     });
   } catch (error) {
@@ -356,9 +376,11 @@ router.post('/test-connection', adminAuth, requirePermission('backup.create'), a
         break;
       }
 
-      // SSRF protection: block connections to private/internal addresses
-      const { isPrivateIP } = require('../utils/networkValidation');
-      if (isPrivateIP(host)) {
+      // SSRF protection: resolve the host and block any private/internal
+      // address. ssh does its own DNS at connect time, so a literal-only
+      // check let a hostname resolving to an internal IP through (#GHSA-4jh8).
+      const { isHostAllowed } = require('../utils/networkValidation');
+      if (!(await isHostAllowed(host))) {
         res.json({ success: false, message: 'Host cannot be a private or internal network address' });
         break;
       }

backend/src/routes/adminBusinessProfile.js

@@ -249,33 +249,84 @@ router.get(
     const brandingLogoUrl  = await getAppSetting('branding_logo_url');
     const resolved = await resolveLogoFile(profile);
 
+    // GHSA-29vm: report candidates RELATIVE to the storage roots rather than
+    // echoing absolute container paths and process.cwd(). This endpoint exists
+    // to answer "which candidate did/didn't exist", which relative paths answer
+    // just as well without handing out the filesystem layout.
+    const cwdStorage = path.join(process.cwd(), 'storage');
+    const relativise = (p) => {
+      for (const [name, root] of [['STORAGE', storageRoot], ['CWD_STORAGE', cwdStorage]]) {
+        const rel = path.relative(root, p);
+        if (rel && !rel.startsWith('..') && !path.isAbsolute(rel)) {
+          return `<${name}>/${rel.split(path.sep).join('/')}`;
+        }
+      }
+      return path.basename(p);
+    };
+
     const inspect = (label, raw) => {
       const value = (raw || '').toString().trim();
       if (!value) return { label, value: null, candidates: [] };
       const stripped = value.replace(/^\/+/, '');
       const baseName = path.basename(value);
+      // Mirrors resolveLogoFile's candidate list EXACTLY. It keeps the raw
+      // absolute value as a candidate (multer stores branding_logo_path
+      // absolute) and lets the storage-root containment filter reject it when
+      // it points outside — so the diagnostic must include it too, or a
+      // legitimately-contained absolute logo shows every candidate as missing
+      // while resolvedTo names the file.
+      // The stripped joins (`<ROOT>/<value-minus-leading-slash>`) are gated on
+      // containment, NOT on path.isAbsolute(). isAbsolute() cannot tell a
+      // multer disk path from a root-relative URL like `/custom/logo.png`, and
+      // for the URL form `<STORAGE>/custom/logo.png` is a file the resolver
+      // genuinely returns — skipping it made this endpoint report "no source
+      // candidate exists" about a logo that renders fine.
+      //
+      // The gate is instead: does the raw value ALREADY resolve inside a
+      // storage root? If so it is a real disk path, the raw candidate below
+      // covers it, and the stripped join would only produce a double-prefixed
+      // path that can never exist while re-embedding the absolute path
+      // GHSA-29vm exists to stop echoing (redact() strips only the leading
+      // root, so the inner one would survive).
+      const valueInsideRoot = path.isAbsolute(value) && [
+        path.resolve(storageRoot), path.resolve(cwdStorage),
+      ].some((root) => {
+        const r = path.resolve(value);
+        return r === root || r.startsWith(root + path.sep);
+      });
+      const strippedJoins = valueInsideRoot
+        ? []
+        : [path.join(storageRoot, stripped), path.join(cwdStorage, stripped)];
       const candidates = [
-        path.isAbsolute(value) ? value : null,
-        path.join(storageRoot, stripped),
+        ...(path.isAbsolute(value) ? [value] : []),
+        ...strippedJoins,
         path.join(storageRoot, 'uploads', 'logos', baseName),
         path.join(storageRoot, 'branding', baseName),
-        path.join(process.cwd(), 'storage', stripped),
-        path.join(process.cwd(), 'storage', 'uploads', 'logos', baseName),
-        path.join(process.cwd(), 'storage', 'branding', baseName),
-      ].filter(Boolean);
+        path.join(cwdStorage, 'uploads', 'logos', baseName),
+        path.join(cwdStorage, 'branding', baseName),
+      ];
+      const roots = [path.resolve(storageRoot), path.resolve(cwdStorage)];
+      const contained = candidates.filter((c) => {
+        const r = path.resolve(c);
+        return roots.some((root) => r === root || r.startsWith(root + path.sep));
+      });
       return {
-        label, value,
-        candidates: [...new Set(candidates)].map((p) => ({
-          path: p,
+        label,
+        // GHSA-29vm: branding_logo_path is stored absolute by multer, so
+        // echoing it back handed out the filesystem layout just as the
+        // candidate paths did. Relativise it the same way.
+        value: path.isAbsolute(value) ? relativise(value) : value,
+        candidates: [...new Set(contained)].map((p) => ({
+          path: relativise(p),
           exists: (() => { try { return fs.existsSync(p) && fs.statSync(p).isFile(); } catch { return false; } })(),
         })),
       };
     };
 
     return successResponse(res, {
-      storageRoot,
-      cwd: process.cwd(),
-      resolvedTo: resolved,
+      // Absolute storageRoot / cwd deliberately omitted (GHSA-29vm); the
+      // candidate paths below are shown relative to <STORAGE>/<CWD_STORAGE>.
+      resolvedTo: resolved ? relativise(resolved) : null,
       sources: [
         inspect('business_profile.logo_path', profile?.logo_path),
         inspect('app_settings.branding_logo_path', brandingDiskPath),

backend/src/routes/adminCategories.js

@@ -141,8 +141,18 @@ router.put('/:id', adminAuth, requirePermission('settings.edit'), [
         .trim()
     };
 
-    // Update hero_photo_id if provided (including null to clear it)
+    // Update hero_photo_id if provided (including null to clear it). A
+    // non-null hero must belong to this category (GHSA-j2f4) — the general
+    // update path previously wrote it with no membership check at all.
     if (Object.prototype.hasOwnProperty.call(req.body, 'hero_photo_id')) {
+      if (hero_photo_id) {
+        const heroPhoto = await db('photos')
+          .where({ id: hero_photo_id, category_id: id })
+          .first();
+        if (!heroPhoto) {
+          return res.status(404).json({ error: 'Photo not found in this category' });
+        }
+      }
       updateData.hero_photo_id = hero_photo_id || null;
     }
 
@@ -192,11 +202,16 @@ router.put('/:id/hero', adminAuth, requirePermission('settings.edit'), [
       return res.status(404).json({ error: 'Category not found' });
     }
 
-    // If hero_photo_id is provided, verify it belongs to a photo in this category
+    // If hero_photo_id is provided, verify the photo actually belongs to
+    // THIS category — checking existence alone let an admin point a
+    // category's hero at a photo from a different category or event
+    // (GHSA-j2f4).
     if (hero_photo_id) {
-      const photo = await db('photos').where('id', hero_photo_id).first();
+      const photo = await db('photos')
+        .where({ id: hero_photo_id, category_id: id })
+        .first();
       if (!photo) {
-        return res.status(404).json({ error: 'Photo not found' });
+        return res.status(404).json({ error: 'Photo not found in this category' });
       }
     }
 

backend/src/routes/adminCustomers.js

@@ -11,6 +11,8 @@ const { body, param, query } = require('express-validator');
 const { adminAuth } = require('../middleware/auth');
 const { requirePermission } = require('../middleware/permissions');
 const { requireFeatureFlag } = require('../middleware/requireFeatureFlag');
+const { filterOwnedEventIds } = require('../middleware/ownership');
+const { db } = require('../database/db');
 
 // Hour-entry routes are gated by the hoursLogging master so a direct API hit
 // can't read/edit/delete/bill logged hours while the feature is off (the
@@ -528,9 +530,45 @@ router.put('/:id/events', [
   body('event_ids.*').isInt({ min: 1 }),
 ], handleAsync(async (req, res) => {
   validateRequest(req);
+  const customerId = parseInt(req.params.id, 10);
+  const submitted = req.body.event_ids.map(Number);
+
+  // The customer's CURRENT assignments. The "Manage galleries" dialog submits
+  // the full initial list back — including any events owned by OTHER admins —
+  // so we need this to tell "retain an existing foreign assignment" apart from
+  // "newly grant a foreign event".
+  const existingEventIds = (await db('event_customer_assignments')
+    .where('customer_account_id', customerId)
+    .pluck('event_id')).map(Number);
+  const existingSet = new Set(existingEventIds);
+
+  // Events the caller may act on (GHSA-xr6x). A denied id is only acceptable
+  // when the customer ALREADY has that assignment (a foreign event the caller
+  // is merely keeping); a denied id that isn't already assigned is a fresh
+  // attempt to mint access to a foreign/nonexistent event → reject.
+  const { allowed } = await filterOwnedEventIds(req.admin, submitted);
+  const allowedSet = new Set(allowed.map(Number));
+  const illegalNew = submitted.filter((id) => !allowedSet.has(id) && !existingSet.has(id));
+  if (illegalNew.length) {
+    return res.status(403).json({ error: 'One or more events are not yours to assign' });
+  }
+
+  // setAssignmentsForCustomer replaces the FULL assignment list, deleting any
+  // existing row not in the submitted set. A restricted admin must not be able
+  // to revoke another admin's customer↔event links that way, so always retain
+  // the customer's existing assignments to events the caller does NOT own —
+  // regardless of whether the client echoed them back. super_admin owns
+  // everything, so nothing is force-preserved for them.
+  let finalEventIds = allowed.map(Number);
+  if (req.admin.roleName !== 'super_admin' && existingEventIds.length) {
+    const { allowed: ownedExisting } = await filterOwnedEventIds(req.admin, existingEventIds);
+    const ownedExistingSet = new Set(ownedExisting.map(Number));
+    const foreignExisting = existingEventIds.filter((id) => !ownedExistingSet.has(id));
+    finalEventIds = [...new Set([...finalEventIds, ...foreignExisting])];
+  }
   const result = await customerAccountsService.setAssignmentsForCustomer(
-    parseInt(req.params.id, 10),
-    req.body.event_ids,
+    customerId,
+    finalEventIds,
     req.admin.id,
   );
   successResponse(res, result);

backend/src/routes/adminDashboard.js

@@ -24,11 +24,47 @@ function normaliseDateKey(value) {
   return String(value).slice(0, 10);
 }
 
+/**
+ * Event ids the caller's dashboard may aggregate over, or `null` when the
+ * caller is unrestricted (GHSA-c2jj / gqx7 / jhcf).
+ *
+ * These endpoints are gated only by `analytics.view`, which the `editor` role
+ * holds — yet the events *list* restricts editors to their own rows
+ * (adminEvents/crud.js: `roleName === 'editor'` → `created_by = admin.id`).
+ * The dashboard therefore reported instance-wide totals, and the analytics
+ * endpoint returned other admins' gallery names and slugs, to a role that
+ * cannot see those events anywhere else.
+ *
+ * Scoped on `editor` specifically to mirror the events list exactly, so the
+ * `admin` role's dashboard is unchanged. (`filterOwnedEventIds` uses the
+ * broader `!== super_admin` rule; the two conventions disagree in this
+ * codebase and matching the list is the no-regression choice.)
+ *
+ * @returns {Promise<number[]|null>} ids to restrict to, or null for no limit
+ */
+function isScopedAdmin(admin) {
+  return admin?.roleName === 'editor';
+}
+
+/**
+ * Restrict `query` to the caller's own events.
+ *
+ * Uses a SUBQUERY rather than materialising the id list. An editor owning more
+ * events than the driver's bind-parameter limit (~999 on SQLite, 65535 on
+ * Postgres) would otherwise blow past it once every id became a placeholder,
+ * turning all three dashboard endpoints into 500s — and even well below that
+ * limit the whole list was re-sent for each of the ~10 aggregates per request.
+ */
+function applyEventScope(query, admin, column) {
+  if (!isScopedAdmin(admin)) return query;
+  return query.whereIn(column, db('events').select('id').where('created_by', admin.id));
+}
+
 // Get dashboard statistics
 router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req, res) => {
   try {
     // Get active events count
-    const activeEvents = await db('events')
+    const activeEvents = await applyEventScope(db('events'), req.admin, 'id')
       .where('is_active', formatBoolean(true))
       .where('is_archived', formatBoolean(false))
       .count('id as count')
@@ -39,7 +75,7 @@ router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req,
     sevenDaysFromNow.setDate(sevenDaysFromNow.getDate() + 7);
     const now = new Date();
     
-    const expiringEvents = await db('events')
+    const expiringEvents = await applyEventScope(db('events'), req.admin, 'id')
       .where('is_active', formatBoolean(true))
       .where('is_archived', formatBoolean(false))
       .where('expires_at', '<=', sevenDaysFromNow.toISOString())
@@ -48,12 +84,12 @@ router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req,
       .first();
 
     // Get total photos count
-    const totalPhotos = await db('photos')
+    const totalPhotos = await applyEventScope(db('photos'), req.admin, 'event_id')
       .count('id as count')
       .first();
 
     // Get storage usage (sum of all photo sizes)
-    const storageUsed = await db('photos')
+    const storageUsed = await applyEventScope(db('photos'), req.admin, 'event_id')
       .sum('size_bytes as total')
       .first();
 
@@ -61,21 +97,21 @@ router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req,
     const thirtyDaysAgo = new Date();
     thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
     
-    const totalViews = await db('access_logs')
+    const totalViews = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .where('action', 'view')
       .where('timestamp', '>=', thirtyDaysAgo.toISOString())
       .count('id as count')
       .first();
 
     // Get total downloads (last 30 days) - include both single and bulk downloads
-    const totalDownloads = await db('access_logs')
+    const totalDownloads = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .whereIn('action', ['download', 'download_all', 'download_all_presigned', 'download_selected'])
       .where('timestamp', '>=', thirtyDaysAgo.toISOString())
       .count('id as count')
       .first();
 
     // Get archived events count
-    const archivedEvents = await db('events')
+    const archivedEvents = await applyEventScope(db('events'), req.admin, 'id')
       .where('is_archived', formatBoolean(true))
       .count('id as count')
       .first();
@@ -83,7 +119,7 @@ router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req,
     // Get total events count (all events regardless of status) — used by the
     // events list page to render accurate "All (N)" / Total Events counters
     // when the table is server-paginated (#346).
-    const totalEvents = await db('events')
+    const totalEvents = await applyEventScope(db('events'), req.admin, 'id')
       .count('id as count')
       .first();
 
@@ -91,14 +127,14 @@ router.get('/stats', adminAuth, requirePermission('analytics.view'), async (req,
     const sixtyDaysAgo = new Date();
     sixtyDaysAgo.setDate(sixtyDaysAgo.getDate() - 60);
     
-    const previousViews = await db('access_logs')
+    const previousViews = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .where('action', 'view')
       .where('timestamp', '>=', sixtyDaysAgo.toISOString())
       .where('timestamp', '<', thirtyDaysAgo.toISOString())
       .count('id as count')
       .first();
 
-    const previousDownloads = await db('access_logs')
+    const previousDownloads = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .whereIn('action', ['download', 'download_all', 'download_all_presigned', 'download_selected'])
       .where('timestamp', '>=', sixtyDaysAgo.toISOString())
       .where('timestamp', '<', thirtyDaysAgo.toISOString())
@@ -136,9 +172,19 @@ router.get('/activity', adminAuth, requirePermission('analytics.view'), async (r
   try {
     const { limit } = getPagination(req, { limit: 10 });
 
-    const activities = await db('activity_logs')
-      .select('activity_logs.*', 'events.event_name')
-      .leftJoin('events', 'activity_logs.event_id', 'events.id')
+    // Scope the feed to the caller's own events (GHSA-jhcf) — it otherwise
+    // returned every admin's actions, including actor names and verbatim
+    // metadata. `activity_logs.event_id` is NULLABLE: system-level entries
+    // (logins, settings changes) carry no event, and those are deliberately
+    // EXCLUDED for a scoped caller rather than shown, since they are exactly
+    // the cross-admin actions this advisory is about.
+    const activities = await applyEventScope(
+      db('activity_logs')
+        .select('activity_logs.*', 'events.event_name')
+        .leftJoin('events', 'activity_logs.event_id', 'events.id'),
+      req.admin,
+      'activity_logs.event_id'
+    )
       .orderBy('activity_logs.created_at', 'desc')
       .limit(limit);
 
@@ -244,7 +290,7 @@ router.get('/health', adminAuth, requirePermission('settings.view'), async (req,
 router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (req, res) => {
   try {
     const days = sanitizeDays(req.query.days || 7);
-    
+
     // Generate date range
     const dates = [];
     for (let i = days - 1; i >= 0; i--) {
@@ -262,21 +308,21 @@ router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (
     const startDateStr = startDate.toISOString();
 
     // Get views per day
-    const viewsData = await db('access_logs')
+    const viewsData = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .select(db.raw('DATE(timestamp) as date'), db.raw('COUNT(*) as count'))
       .where('action', 'view')
       .where('timestamp', '>=', startDateStr)
       .groupByRaw('DATE(timestamp)');
 
     // Get downloads per day - include both single and bulk downloads
-    const downloadsData = await db('access_logs')
+    const downloadsData = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .select(db.raw('DATE(timestamp) as date'), db.raw('COUNT(*) as count'))
       .whereIn('action', ['download', 'download_all', 'download_all_presigned', 'download_selected'])
       .where('timestamp', '>=', startDateStr)
       .groupByRaw('DATE(timestamp)');
 
     // Get unique visitors per day
-    const visitorsData = await db('access_logs')
+    const visitorsData = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .select(db.raw('DATE(timestamp) as date'), db.raw('COUNT(DISTINCT ip_address) as count'))
       .where('timestamp', '>=', startDateStr)
       .groupByRaw('DATE(timestamp)');
@@ -303,7 +349,7 @@ router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (
     });
 
     // Get top galleries by views with additional metrics
-    const topGalleries = await db('access_logs')
+    const topGalleries = await applyEventScope(db('access_logs'), req.admin, 'access_logs.event_id')
       .select('events.id', 'events.event_name', 'events.slug')
       .select(db.raw('COUNT(CASE WHEN action = \'view\' THEN 1 END) as views'))
       .select(db.raw('COUNT(DISTINCT CASE WHEN action = \'view\' THEN ip_address END) as uniqueVisitors'))
@@ -324,7 +370,10 @@ router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (
     let devices = { desktop: 0, mobile: 0, tablet: 0 };
     let devicesSource = 'access_logs';
 
-    const adapter = await resolveAdapter();
+    // The external tracker reports instance-wide device data with no way to
+    // filter it by event, so a scoped caller must not receive it (GHSA-gqx7).
+    // They fall through to the access_logs heuristic, which IS scoped.
+    const adapter = isScopedAdmin(req.admin) ? null : await resolveAdapter();
     if (adapter) {
       try {
         const trackerDevices = await adapter.fetchDeviceBreakdown({
@@ -346,7 +395,7 @@ router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (
       // Local heuristic on access_logs user_agent. Coarse — `LIKE` doesn't
       // cover every UA shape (some Android browsers, embedded webviews, etc.)
       // — and counts come back as strings on Postgres, hence Number() below.
-      const deviceData = await db('access_logs')
+      const deviceData = await applyEventScope(db('access_logs'), req.admin, 'event_id')
         .select(
           db.raw(`
             CASE
@@ -370,19 +419,19 @@ router.get('/analytics', adminAuth, requirePermission('analytics.view'), async (
     }
 
     // Calculate totals for the period (matching /stats logic)
-    const totalViews = await db('access_logs')
+    const totalViews = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .where('action', 'view')
       .where('timestamp', '>=', startDateStr)
       .count('id as count')
       .first();
 
-    const totalDownloadsCount = await db('access_logs')
+    const totalDownloadsCount = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .whereIn('action', ['download', 'download_all', 'download_all_presigned', 'download_selected'])
       .where('timestamp', '>=', startDateStr)
       .count('id as count')
       .first();
 
-    const totalUniqueVisitors = await db('access_logs')
+    const totalUniqueVisitors = await applyEventScope(db('access_logs'), req.admin, 'event_id')
       .where('timestamp', '>=', startDateStr)
       .countDistinct('ip_address as count')
       .first();

backend/src/routes/adminDatabaseBackup.js

@@ -123,8 +123,20 @@ router.post('/backup', requirePermission('backup.create'), async (req, res) => {
       trackingUrl: '/api/admin/database-backup/progress'
     });
     
-    // Run backup in background
-    databaseBackupService.backup(req.body).catch(error => {
+    // Forward ONLY the real backup knobs (GHSA-jw8m). Passing req.body
+    // straight through let the caller set `destinationPath`, which the
+    // service merges over its config — so a backup.create holder (the
+    // `admin` role, which has neither settings.edit nor backup.restore)
+    // could dump the whole database into the PUBLIC /uploads static mount
+    // and fetch it unauthenticated, hashes and encrypted SMTP creds included.
+    // destinationPath is not a persistable setting; the request body was its
+    // only source, so dropping it here costs no legitimate behaviour.
+    const body = req.body || {};
+    const options = {};
+    for (const key of ['compress', 'validateIntegrity', 'includeChecksums']) {
+      if (body[key] !== undefined) options[key] = body[key];
+    }
+    databaseBackupService.backup(options).catch(error => {
       logger.error('Manual database backup failed:', error);
     });
   } catch (error) {

backend/src/routes/adminDev.js

@@ -28,6 +28,7 @@
  */
 
 const express = require('express');
+const { getStoragePath } = require('../config/storage');
 const { body } = require('express-validator');
 const path = require('path');
 const fs = require('fs');
@@ -128,7 +129,7 @@ router.get(
 );
 
 const FRONTEND_URL_FALLBACK = 'https://app.example.com';
-const DEV_TEST_DIR = () => path.join(process.cwd(), 'storage', 'business-docs', 'dev-test');
+const DEV_TEST_DIR = () => path.join(getStoragePath(), 'business-docs', 'dev-test');
 
 function fakeMoney(major, currency, locale = 'de') {
   return new Intl.NumberFormat(locale === 'de' ? 'de-CH' : 'en-GB', {

backend/src/routes/adminEmail.js

@@ -66,9 +66,11 @@ router.post('/config', [
       tls_reject_unauthorized
     } = req.body;
 
-    // Validate SMTP host is not a private/internal address (SSRF protection)
-    const { isPrivateIP } = require('../utils/networkValidation');
-    if (isPrivateIP(smtp_host)) {
+    // Validate SMTP host is not a private/internal address (SSRF protection).
+    // Resolves DNS so a public-looking hostname pointing at an internal IP
+    // is caught, not just literal private addresses (#GHSA-ch64).
+    const { isHostAllowed } = require('../utils/networkValidation');
+    if (!(await isHostAllowed(smtp_host))) {
       return res.status(400).json({ error: 'SMTP host cannot point to a private or internal network address' });
     }
 
@@ -152,8 +154,8 @@ router.post('/incoming-config', [
     const errors = validationResult(req);
     if (!errors.isEmpty()) return res.status(400).json({ errors: errors.array() });
     const { imap_host, imap_port, imap_secure, imap_user, imap_pass, imap_folder } = req.body;
-    const { isPrivateIP } = require('../utils/networkValidation');
-    if (isPrivateIP(imap_host)) {
+    const { isHostAllowed } = require('../utils/networkValidation');
+    if (!(await isHostAllowed(imap_host))) {
       return res.status(400).json({ error: 'IMAP host cannot point to a private or internal network address' });
     }
     const existing = await db('email_configs').first();
@@ -183,8 +185,8 @@ router.post('/incoming-config/folders', adminAuth, requirePermission('email.view
   try {
     const { imap_host, imap_port, imap_secure, imap_user, imap_pass } = req.body || {};
     if (imap_host) {
-      const { isPrivateIP } = require('../utils/networkValidation');
-      if (isPrivateIP(imap_host)) {
+      const { isHostAllowed } = require('../utils/networkValidation');
+      if (!(await isHostAllowed(imap_host))) {
         return res.status(400).json({ error: 'IMAP host cannot point to a private or internal network address' });
       }
     }
@@ -205,8 +207,8 @@ router.post('/incoming-config/test', adminAuth, requirePermission('email.view'),
   try {
     const { imap_host, imap_port, imap_secure, imap_user, imap_pass, imap_folder } = req.body || {};
     if (imap_host) {
-      const { isPrivateIP } = require('../utils/networkValidation');
-      if (isPrivateIP(imap_host)) {
+      const { isHostAllowed } = require('../utils/networkValidation');
+      if (!(await isHostAllowed(imap_host))) {
         return res.status(400).json({ error: 'IMAP host cannot point to a private or internal network address' });
       }
     }
@@ -385,11 +387,11 @@ router.post('/accounts', adminAuth, messagingGate, requirePermission('email.edit
     if (!b.account_key) return res.status(400).json({ error: 'account_key is required' });
     // SSRF guard — mirror /config + /incoming-config: neither the IMAP nor the
     // SMTP host may point at a private/internal address.
-    const { isPrivateIP } = require('../utils/networkValidation');
-    if (b.imap_host && isPrivateIP(b.imap_host)) {
+    const { isHostAllowed } = require('../utils/networkValidation');
+    if (b.imap_host && !(await isHostAllowed(b.imap_host))) {
       return res.status(400).json({ error: 'IMAP host cannot point to a private or internal network address' });
     }
-    if (b.smtp_host && isPrivateIP(b.smtp_host)) {
+    if (b.smtp_host && !(await isHostAllowed(b.smtp_host))) {
       return res.status(400).json({ error: 'SMTP host cannot point to a private or internal network address' });
     }
     const patch = {
@@ -434,8 +436,8 @@ router.post('/accounts', adminAuth, messagingGate, requirePermission('email.edit
 router.post('/accounts/test', adminAuth, messagingGate, requirePermission('email.view'), async (req, res) => {
   try {
     const b = req.body || {};
-    const { isPrivateIP } = require('../utils/networkValidation');
-    if (b.imap_host && isPrivateIP(b.imap_host)) {
+    const { isHostAllowed } = require('../utils/networkValidation');
+    if (b.imap_host && !(await isHostAllowed(b.imap_host))) {
       return res.status(400).json({ error: 'IMAP host cannot point to a private or internal network address' });
     }
     let pass = b.imap_pass;

backend/src/routes/adminEvents/crud.js

@@ -16,6 +16,7 @@ const path = require('path');
 const { escapeLikePattern } = require('../../utils/sqlSecurity');
 const { validatePasswordInContext, getBcryptRounds } = require('../../utils/passwordValidation');
 const logger = require('../../utils/logger');
+const { sanitizeForLog, sanitizeValidationErrors } = require('../../utils/sanitizeForLog');
 const { errorResponse } = require('../../utils/routeHelpers');
 const { buildShareLinkVariants } = require('../../services/shareLinkService');
 const { parseBooleanInput } = require('../../utils/parsers');
@@ -126,10 +127,13 @@ module.exports = (router) => {
     body('customer_account_ids.*').optional().isInt({ min: 1 })
   ], async (req, res) => {
     try {
-      logger.debug('Create event request body', { body: req.body });
+      // Redact credentials — the body carries the gallery password (GHSA-r794).
+      logger.debug('Create event request body', { body: sanitizeForLog(req.body) });
       const errors = validationResult(req);
       if (!errors.isEmpty()) {
-        logger.error('Validation errors:', errors.array());
+        // errors.array() embeds the SUBMITTED value per field — including a
+        // rejected plaintext password (GHSA-r794).
+        logger.error('Validation errors:', sanitizeValidationErrors(errors.array()));
         return res.status(400).json({ errors: errors.array() });
       }
 
@@ -1263,12 +1267,59 @@ module.exports = (router) => {
     try {
       const errors = validationResult(req);
       if (!errors.isEmpty()) {
-        logger.debug('Update event validation errors', { errors: errors.array(), body: req.body });
+        // Redact credentials — an invalid update still logs the whole body (GHSA-pgmp).
+        logger.debug('Update event validation errors', { errors: sanitizeValidationErrors(errors.array()), body: sanitizeForLog(req.body) });
         return res.status(400).json({ errors: errors.array() });
       }
 
       const { id } = req.params;
       const updates = { ...req.body };
+
+      // Strip identity/provenance/secret columns from the mass-assigned
+      // body (GHSA-3rqx). The handler spreads req.body straight into the
+      // events UPDATE, so without this an events.edit holder could rewrite
+      // ownership (created_by), routing identity (slug/share_link), the
+      // share/client tokens, or the password hashes directly. Plaintext
+      // `password`/`client_password` inputs are NOT stripped — those are the
+      // supported way to change credentials and get hashed below; the
+      // tokens are regenerated internally where needed.
+      // The handler spreads req.body straight into the events UPDATE, so any
+      // column an events.edit holder names is writable unless blocked here.
+      // This is a COMPLETE deny-set of every server-managed / permission-gated
+      // events column (enumerated from the schema); everything else is a
+      // legitimate edit-form field and passes through, including input-only
+      // keys (password/client_password) the handler transforms below. New
+      // server-managed columns MUST be added here. (codex review — GHSA-3rqx.)
+      const IMMUTABLE_EVENT_COLUMNS = [
+        // Identity / provenance
+        'id', 'created_by', 'created_at', 'updated_at', 'slug',
+        // Routing + share/client tokens (generated at create / internally)
+        'share_link', 'share_token', 'client_share_token', 'show_share_token',
+        // Secrets (set via the plaintext password/client_password inputs)
+        'password_hash', 'client_password_hash',
+        // Server-consumed file paths — e.g. DELETE /:id/logo fs.unlink()s
+        // hero_logo_path, so a forged value is an arbitrary-delete primitive.
+        'hero_logo_path', 'hero_logo_url', 'archive_path', 'download_zip_path',
+        // Server-managed timestamps
+        'download_zip_generated_at', 'archived_at', 'revealed_at', 'event_reminder_sent_at',
+        // Lifecycle — governed by dedicated permission-gated routes
+        // (events.archive/restore, publish, activate/deactivate), not events.edit.
+        'is_archived', 'is_draft', 'is_active',
+        // Relationships — managed by projectService.assignEvent + its
+        // customer-consistency checks, and events.edit ≠ quotes/contracts perms.
+        'project_id', 'quote_id',
+        // Legacy mirrors — rejected explicitly below in favour of customer_*.
+        'host_name', 'host_email',
+      ];
+      // Case-insensitive match: SQLite treats quoted identifiers
+      // case-insensitively, so a `{ "Password_Hash": ... }` key would
+      // otherwise survive a case-sensitive delete and still hit the real
+      // column (codex review).
+      const denied = new Set(IMMUTABLE_EVENT_COLUMNS.map((c) => c.toLowerCase()));
+      for (const key of Object.keys(updates)) {
+        if (denied.has(key.toLowerCase())) delete updates[key];
+      }
+
       const customerColumnsAvailable = await hasCustomerContactColumns();
 
       if (Object.prototype.hasOwnProperty.call(updates, 'host_name') || Object.prototype.hasOwnProperty.call(updates, 'host_email')) {
@@ -1395,9 +1446,12 @@ module.exports = (router) => {
       }
 
       // Log the update request for debugging
+      // `updates` no longer holds the plaintext password (stripped above), but
+      // it still carries client_password_hash and — when regenerate_client_token
+      // was passed — a LIVE client_share_token bearer credential.
       logger.debug('Update event request', {
         id,
-        updates,
+        updates: sanitizeForLog(updates),
         color_theme_length: updates.color_theme ? updates.color_theme.length : 0,
         color_theme_type: typeof updates.color_theme,
         hero_photo_id: updates.hero_photo_id,
@@ -1497,10 +1551,15 @@ module.exports = (router) => {
         }
       }
 
-      // Update event
-      await db('events')
-        .where('id', id)
-        .update(updates);
+      // Update event. Skip the write when the denylist (or masked secrets)
+      // left nothing to change — Knex rejects .update({}) with an error,
+      // which would surface as a 500 for an otherwise-valid no-op request
+      // (e.g. a body of only protected fields). (codex review.)
+      if (Object.keys(updates).length > 0) {
+        await db('events')
+          .where('id', id)
+          .update(updates);
+      }
 
       // Customer-account assignments (#354). Same skip semantics as POST:
       // ignore when the customer portal flag is off so stale tabs don't

backend/src/routes/adminFeedback.js

@@ -1,4 +1,5 @@
 const express = require('express');
+const { neutralizeSpreadsheetFormula } = require('../utils/spreadsheetSafe');
 const router = express.Router();
 const { adminAuth } = require('../middleware/auth');
 const { requirePermission } = require('../middleware/permissions');
@@ -164,6 +165,24 @@ router.get('/events/:eventId/feedback',
   }
 );
 
+// Ownership guard for by-feedback-id routes (GHSA-2qc2 / GHSA-32h4). These
+// take a :feedbackId (not :eventId), so requireEventOwnership can't apply —
+// resolve the feedback's event and enforce the same rule (super_admin sees
+// all; others need to own the event, or it's ownerless/legacy). Returns
+// false and sends a 404 (not 403 — don't leak which feedback ids exist)
+// when the caller may not act on it.
+async function assertOwnsFeedback(req, res, feedbackId) {
+  if (req.admin.roleName === 'super_admin') return true;
+  const fb = await db('photo_feedback').where('id', feedbackId).first('event_id');
+  if (!fb) { res.status(404).json({ error: 'Feedback not found' }); return false; }
+  const event = await db('events').where('id', fb.event_id).first('created_by');
+  if (event && event.created_by && event.created_by !== req.admin.id) {
+    res.status(404).json({ error: 'Feedback not found' });
+    return false;
+  }
+  return true;
+}
+
 // Moderate feedback (approve/hide/reject)
 router.put('/feedback/:feedbackId/:action',
   adminAuth,
@@ -171,11 +190,12 @@ router.put('/feedback/:feedbackId/:action',
   async (req, res) => {
     try {
       const { feedbackId, action } = req.params;
-      
+
       if (!['approve', 'hide', 'reject'].includes(action)) {
         return res.status(400).json({ error: 'Invalid action' });
       }
-      
+      if (!(await assertOwnsFeedback(req, res, feedbackId))) return;
+
       await feedbackService.moderateFeedback(feedbackId, action, req.admin.id);
       
       res.json({ success: true });
@@ -193,7 +213,8 @@ router.delete('/feedback/:feedbackId',
   async (req, res) => {
     try {
       const { feedbackId } = req.params;
-      
+      if (!(await assertOwnsFeedback(req, res, feedbackId))) return;
+
       await feedbackService.deleteFeedback(feedbackId, req.admin.id);
       
       res.json({ success: true });
@@ -347,7 +368,15 @@ router.get('/feedback/pending-moderation',
   requirePermission('events.view'),
   async (req, res) => {
     try {
-      const pending = await feedbackService.getPendingModeration();
+      // Scope to the caller's owned events unless super_admin (GHSA-3335).
+      let ownedEventIds = null;
+      if (req.admin.roleName !== 'super_admin') {
+        const rows = await db('events')
+          .where((q) => q.whereNull('created_by').orWhere('created_by', req.admin.id))
+          .select('id');
+        ownedEventIds = rows.map((r) => r.id);
+      }
+      const pending = await feedbackService.getPendingModeration(null, ownedEventIds);
       res.json(pending);
     } catch (error) {
       logger.error('Error getting pending moderation:', error);
@@ -450,11 +479,13 @@ function convertToCSV(data) {
       const value = row[header];
       if (value === null || value === undefined) return '';
       if (typeof value === 'boolean') return value ? 'yes' : 'no';
-      if (typeof value === 'string'
-        && (value.includes(',') || value.includes('"') || value.includes('\n') || value.includes('\r'))) {
-        return `"${value.replace(/"/g, '""')}"`;
+      // Formula-neutralize user-controlled cells (guest_name/comment_text)
+      // before quoting — quoting alone doesn't stop `=cmd()` (GHSA-3cw3).
+      const neutralized = neutralizeSpreadsheetFormula(value);
+      if (neutralized.includes(',') || neutralized.includes('"') || neutralized.includes('\n') || neutralized.includes('\r')) {
+        return `"${neutralized.replace(/"/g, '""')}"`;
       }
-      return value;
+      return neutralized;
     }).join(',');
   });
 

backend/src/routes/adminGuests.js

@@ -39,8 +39,13 @@ function serializeGuest(row) {
   };
 }
 
+const { neutralizeSpreadsheetFormula } = require('../utils/spreadsheetSafe');
+
 function escapeCsvCell(value) {
-  const str = value == null ? '' : String(value);
+  // Neutralize spreadsheet formulas FIRST (a `=cmd()` guest name executes on
+  // open — RFC-4180 quoting doesn't stop it), then quote-wrap (GHSA-wc99 /
+  // GHSA-f4fp).
+  const str = neutralizeSpreadsheetFormula(value);
   if (/[,"\n\r]/.test(str)) {
     return `"${str.replace(/"/g, '""')}"`;
   }

backend/src/routes/adminImageSecurity.js

@@ -502,6 +502,15 @@ router.get('/export', adminAuth, requirePermission('settings.view'), async (req,
 /**
  * Helper function to convert data to CSV
  */
+const { neutralizeSpreadsheetFormula } = require('../utils/spreadsheetSafe');
+
+function csvCell(value) {
+  // Formula-neutralize, then RFC-4180 quote (the previous join('') did
+  // neither — GHSA-37p4).
+  const s = neutralizeSpreadsheetFormula(value);
+  return /[,"\n\r]/.test(s) ? `"${s.replace(/"/g, '""')}"` : s;
+}
+
 function convertToCSV(data) {
   // Simplified CSV conversion for security logs
   const headers = ['timestamp', 'event_type', 'client_ip', 'details'];
@@ -511,8 +520,8 @@ function convertToCSV(data) {
     log.client_ip,
     JSON.stringify(log.details || {})
   ]);
-  
-  return [headers.join(','), ...rows.map(row => row.join(','))].join('\n');
+
+  return [headers.join(','), ...rows.map(row => row.map(csvCell).join(','))].join('\n');
 }
 
 module.exports = router;

backend/src/routes/adminInvoices.js

@@ -894,6 +894,7 @@ router.get(
     // re-fetching here keeps the route a thin shim over the
     // service rather than reaching inside its internals.
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const inv = await db('invoices').where({ id }).first();
     const customer = inv ? await db('customer_accounts').where({ id: inv.customer_account_id }).first() : null;
     const filename = buildPdfFilename({
@@ -902,7 +903,7 @@ router.get(
       fallback: `invoice-${id}`,
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   })
 );
@@ -919,6 +920,7 @@ router.post(
     // the customer so the filename still reflects who the invoice
     // is for; the number segment falls back to "invoice-preview".
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const customer = payload.customerAccountId
       ? await db('customer_accounts').where({ id: payload.customerAccountId }).first()
       : null;
@@ -928,7 +930,7 @@ router.post(
       fallback: 'invoice-preview',
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   })
 );

backend/src/routes/adminPhotos.js

@@ -315,9 +315,10 @@ router.post('/:eventId/upload', adminAuth, requirePermission('photos.upload'), r
     const crypto = require('crypto');
     const uploadId = crypto.randomBytes(16).toString('hex');
 
-    // Counter base — same approximation as before. Strict uniqueness is
-    // already enforced by the filename template + DB unique index, so a
-    // small race here just retries a counter on conflict (rare).
+    // Counter base — a per-request approximation (concurrent upload
+    // requests can compute the same base; there is NO unique index on
+    // photos.filename). Uniqueness of the final path comes from the
+    // random suffix inside generatePhotoFilename (#931).
     const existingCount = await db('photos')
       .where({ event_id: eventId, type: photoType })
       .count('id as count')
@@ -756,6 +757,16 @@ router.patch('/:eventId/photos/:photoId', adminAuth, requirePermission('photos.e
       .where({ id: photoId, event_id: eventId })
       .update(updateData);
 
+    // A visibility or category change alters which photos belong in the
+    // guest download bundle — drop the cached ZIP so it rebuilds fresh,
+    // otherwise a hide→unhide cycle can leave the stale cache omitting
+    // photos added in between (codex review).
+    if (updateData.visibility !== undefined
+        || Object.prototype.hasOwnProperty.call(updateData, 'category_id')
+        || Object.prototype.hasOwnProperty.call(updateData, 'type')) {
+      downloadZipService.invalidate(parseInt(eventId, 10));
+    }
+
     // Fetch and return the updated photo
     const updatedPhoto = await db('photos')
       .where({ id: photoId, event_id: eventId })
@@ -904,6 +915,14 @@ router.post('/:eventId/photos/bulk-update', adminAuth, requirePermission('photos
       .where('event_id', eventId)
       .update(updateData);
 
+    // Visibility/category changes alter the guest download bundle — drop the
+    // cached ZIP so it rebuilds fresh (codex review).
+    if (updateData.visibility !== undefined
+        || Object.prototype.hasOwnProperty.call(updateData, 'category_id')
+        || Object.prototype.hasOwnProperty.call(updateData, 'type')) {
+      downloadZipService.invalidate(parseInt(eventId, 10));
+    }
+
     res.json({ message: `${photoIds.length} photos updated successfully` });
   } catch (error) {
     errorResponse(res, error, 500, 'Failed to update photos');

backend/src/routes/adminProjects.js

@@ -15,8 +15,32 @@ const { requirePermission, userHasAnyPermission } = require('../middleware/permi
 const { handleAsync, validateRequest, successResponse } = require('../utils/routeHelpers');
 const projectService = require('../services/projectService');
 const { db } = require('../database/db');
+const { ownedProjectsSubquery, requireProjectOwnership, filterOwnedEventIds } = require('../middleware/ownership');
+const { ForbiddenError } = require('../utils/errors');
 
 const router = express.Router();
+
+// A deal that spans both quotes and contracts cascades a project link across
+// BOTH tables (projectService.linkDealToProject). So attaching one document
+// must also require manage permission on the OTHER domain the cascade will
+// touch — otherwise quotes.manage alone could re-point a linked contract, and
+// vice versa (GHSA-v4vw / codex review). No-op when the deal touches only the
+// one domain, or on older instances without the deal_uuid column.
+async function assertCascadePermitted(req, docTable, docId, otherTable, otherPerm) {
+  let doc;
+  try {
+    doc = await db(docTable).where({ id: docId }).first('deal_uuid');
+  } catch { return; }
+  if (!doc || !doc.deal_uuid) return;
+  let linked;
+  try {
+    linked = await db(otherTable).where({ deal_uuid: doc.deal_uuid }).first('id');
+  } catch { return; }
+  if (!linked) return;
+  if (!(await userHasAnyPermission(req.admin.id, [otherPerm]))) {
+    throw new ForbiddenError(`This deal also links a ${otherTable.replace(/s$/, '')}; the ${otherPerm} permission is required`);
+  }
+}
 router.use(adminAuth);
 
 // Projects is feature-flagged like bills/quotes — when off, the whole cockpit
@@ -42,10 +66,15 @@ router.get('/', requirePermission('events.view'), handleAsync(async (req, res) =
     bills: await userHasAnyPermission(req.admin.id, ['bills.view']),
     quotes: await userHasAnyPermission(req.admin.id, ['quotes.view']),
   };
+  // Only the caller's projects (GHSA-wrg5). Passed as a SUBQUERY so a large
+  // project count can't hit the driver's bind-parameter limit; null means
+  // unrestricted.
+  const projectIds = ownedProjectsSubquery(req.admin);
   const projects = await projectService.listProjects({
     search: req.query.q || '',
     status: req.query.status || null,
     perms,
+    projectIds,
   });
   return successResponse(res, { projects });
 }));
@@ -65,7 +94,7 @@ router.post('/',
 );
 
 // Detail
-router.get('/:id', requirePermission('events.view'), [param('id').isInt({ min: 1 })], handleAsync(async (req, res) => {
+router.get('/:id', requirePermission('events.view'), requireProjectOwnership, [param('id').isInt({ min: 1 })], handleAsync(async (req, res) => {
   validateRequest(req);
   const project = await projectService.getProjectById(parseInt(req.params.id, 10));
   if (!project) return res.status(404).json({ error: 'Project not found' });
@@ -75,6 +104,7 @@ router.get('/:id', requirePermission('events.view'), [param('id').isInt({ min: 1
 // Update
 router.put('/:id',
   requirePermission('events.edit'),
+  requireProjectOwnership,
   [
     param('id').isInt({ min: 1 }),
     body('name').optional().isString().trim().isLength({ min: 1, max: 255 }),
@@ -96,50 +126,98 @@ router.put('/:id',
 // Attach an event to the project
 router.post('/:id/events',
   requirePermission('events.edit'),
+  requireProjectOwnership,
   [param('id').isInt({ min: 1 }), body('eventId').isInt({ min: 1 })],
   handleAsync(async (req, res) => {
     validateRequest(req);
-    const result = await projectService.assignEvent(parseInt(req.params.id, 10), parseInt(req.body.eventId, 10));
+    const eventId = parseInt(req.body.eventId, 10);
+    // Both sides must be the caller's (GHSA-wrg5): requireProjectOwnership
+    // covers the project, this covers the INCOMING event. Otherwise an editor
+    // could pull a foreign event into a project they own and then read that
+    // event's rolled-up documents through /:id/overview.
+    const { denied } = await filterOwnedEventIds(req.admin, [eventId]);
+    if (denied.length) {
+      return res.status(403).json({ error: 'That event is not yours to attach' });
+    }
+    const result = await projectService.assignEvent(parseInt(req.params.id, 10), eventId);
     return successResponse(res, result, 200, 'Event attached to project');
   }),
 );
 
 // Attach a quote to the project (quotes carry no event_id — migration 121).
+// Requires quotes.manage in addition to events.edit — attaching a quote
+// mutates a separately-permissioned document domain (GHSA-v4vw).
 router.post('/:id/quotes',
-  requirePermission('events.edit'),
+  requirePermission(['events.edit', 'quotes.manage'], { requireAll: true }),
+  requireProjectOwnership,
   [param('id').isInt({ min: 1 }), body('quoteId').isInt({ min: 1 })],
   handleAsync(async (req, res) => {
     validateRequest(req);
-    const result = await projectService.assignQuote(parseInt(req.params.id, 10), parseInt(req.body.quoteId, 10));
+    const quoteId = parseInt(req.body.quoteId, 10);
+    await assertCascadePermitted(req, 'quotes', quoteId, 'contracts', 'contracts.manage');
+    const result = await projectService.assignQuote(parseInt(req.params.id, 10), quoteId, req.admin);
     return successResponse(res, result, 200, 'Quote attached to project');
   }),
 );
 
-// Attach a contract to the project.
+// Attach a contract to the project. Requires contracts.manage in addition
+// to events.edit (GHSA-v4vw).
 router.post('/:id/contracts',
-  requirePermission('events.edit'),
+  requirePermission(['events.edit', 'contracts.manage'], { requireAll: true }),
+  requireProjectOwnership,
   [param('id').isInt({ min: 1 }), body('contractId').isInt({ min: 1 })],
   handleAsync(async (req, res) => {
     validateRequest(req);
-    const result = await projectService.assignContract(parseInt(req.params.id, 10), parseInt(req.body.contractId, 10));
+    const contractId = parseInt(req.body.contractId, 10);
+    await assertCascadePermitted(req, 'contracts', contractId, 'quotes', 'quotes.manage');
+    const result = await projectService.assignContract(parseInt(req.params.id, 10), contractId, req.admin);
     return successResponse(res, result, 200, 'Contract attached to project');
   }),
 );
 
 // The cockpit aggregation — doc types gated on the admin's own permissions
-router.get('/:id/overview', requirePermission('events.view'), [param('id').isInt({ min: 1 })], handleAsync(async (req, res) => {
+router.get('/:id/overview', requirePermission('events.view'), requireProjectOwnership, [param('id').isInt({ min: 1 })], handleAsync(async (req, res) => {
   validateRequest(req);
   const perms = {
     bills: await userHasAnyPermission(req.admin.id, ['bills.view']),
     quotes: await userHasAnyPermission(req.admin.id, ['quotes.view']),
     contracts: await userHasAnyPermission(req.admin.id, ['contracts.view']),
   };
-  const overview = await projectService.getProjectOverview(parseInt(req.params.id, 10), perms);
+  const overview = await projectService.getProjectOverview(parseInt(req.params.id, 10), perms, req.admin);
   return successResponse(res, overview);
 }));
 
+/**
+ * These routes key on an `email_queue` id alone (GHSA-93x4) — nothing tied the
+ * row to a project or event the caller can see, so any admin holding
+ * `events.view` / `email.send` could preview, resend, cancel or retry ANY
+ * queued mail on the instance by walking ids.
+ *
+ * Scoped via `email_queue.event_id` → the caller's owned events. `event_id` is
+ * NULL for CRM document mail (quote/contract/invoice sends carry no event), and
+ * those rows have no ownable parent here, so a scoped caller is denied them
+ * rather than guessed into access. 404, not 403, so this isn't an id oracle.
+ */
+async function requireOwnedQueuedEmail(req, res, next) {
+  try {
+    if (req.admin?.roleName === 'super_admin') return next();
+    const emailId = parseInt(req.params.emailId, 10);
+    const row = await db('email_queue').where({ id: emailId }).first('event_id');
+    if (!row || !row.event_id) {
+      return res.status(404).json({ error: 'Email not found' });
+    }
+    const { denied } = await filterOwnedEventIds(req.admin, [row.event_id]);
+    if (denied.length) {
+      return res.status(404).json({ error: 'Email not found' });
+    }
+    return next();
+  } catch (err) {
+    return next(err);
+  }
+}
+
 // Email preview — the ACTUAL sent HTML (or null for pre-rendered_html rows)
-router.get('/email/:emailId/preview', requirePermission('events.view'), [param('emailId').isInt({ min: 1 })], handleAsync(async (req, res) => {
+router.get('/email/:emailId/preview', requirePermission('events.view'), [param('emailId').isInt({ min: 1 })], requireOwnedQueuedEmail, handleAsync(async (req, res) => {
   validateRequest(req);
   const preview = await projectService.getEmailPreview(parseInt(req.params.emailId, 10));
   return successResponse(res, preview);
@@ -152,9 +230,9 @@ const emailAction = (fn) => handleAsync(async (req, res) => {
   const result = await projectService[fn](parseInt(req.params.emailId, 10), req.admin.id);
   return successResponse(res, result);
 });
-router.post('/email/:emailId/resend',   requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], emailAction('resendEmail'));
-router.post('/email/:emailId/cancel',    requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], emailAction('cancelEmail'));
-router.post('/email/:emailId/retry',     requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], emailAction('retryEmail'));
-router.post('/email/:emailId/send-now',  requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], emailAction('sendEmailNow'));
+router.post('/email/:emailId/resend',   requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], requireOwnedQueuedEmail, emailAction('resendEmail'));
+router.post('/email/:emailId/cancel',    requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], requireOwnedQueuedEmail, emailAction('cancelEmail'));
+router.post('/email/:emailId/retry',     requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], requireOwnedQueuedEmail, emailAction('retryEmail'));
+router.post('/email/:emailId/send-now',  requirePermission('email.send'), [param('emailId').isInt({ min: 1 })], requireOwnedQueuedEmail, emailAction('sendEmailNow'));
 
 module.exports = router;

backend/src/routes/adminQuotes.js

@@ -537,6 +537,7 @@ router.get(
     const id = parseInt(req.params.id, 10);
     const buf = await quoteService.renderQuotePdfBuffer(id);
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const quote = await db('quotes').where({ id }).first();
     const customer = quote ? await db('customer_accounts').where({ id: quote.customer_account_id }).first() : null;
     const filename = buildPdfFilename({
@@ -545,7 +546,7 @@ router.get(
       fallback: `quote-${id}`,
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   })
 );
@@ -559,6 +560,7 @@ router.post(
     const payload = mapPayloadToService(req.body);
     const buf = await quoteService.renderQuotePdfFromPayload(payload);
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const customer = payload.customerAccountId
       ? await db('customer_accounts').where({ id: payload.customerAccountId }).first()
       : null;
@@ -568,7 +570,7 @@ router.post(
       fallback: 'quote-preview',
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   })
 );

backend/src/routes/adminRestore.js

@@ -91,6 +91,12 @@ router.post('/validate', requirePermission('backup.restore'), [
   }
 
   try {
+    // Constrain the caller-supplied paths to configured backup roots (GHSA-fw4c)
+    const pathError = await checkRestorePathsAllowed(req.body);
+    if (pathError) {
+      return res.status(400).json({ success: false, error: pathError });
+    }
+
     // Transform S3 config from frontend format
     const s3Config = transformS3Config(req.body);
 
@@ -165,6 +171,12 @@ router.post('/start', requirePermission('backup.restore'), [
       });
     }
 
+    // Constrain the caller-supplied paths to configured backup roots (GHSA-fw4c)
+    const pathError = await checkRestorePathsAllowed(req.body);
+    if (pathError) {
+      return res.status(400).json({ success: false, error: pathError });
+    }
+
     // Check permissions for dangerous options
     const settings = await getRestoreSettings();
     if (req.body.force && !settings.restore_allow_force) {
@@ -759,4 +771,67 @@ async function getBackupConfig() {
   return config;
 }
 
+/**
+ * GHSA-fw4c: `source` and `manifestPath` were validated only as "not empty"
+ * before being handed to the privileged restore engine, which reads them,
+ * parses the manifest and executes the referenced SQL against the live
+ * database. Constrain them to the operator-configured backup locations.
+ *
+ * The allowlist is the SAME set the restore wizard discovers from
+ * (`backup_destination_path` + `backup_manifest_path`), so the disaster-
+ * recovery flow is untouched: an operator restoring from a rescued mount
+ * already has to point those settings at it for the backup to be listed.
+ * RESTORE_ALLOWED_ROOTS (colon-separated) is an escape hatch for unusual
+ * layouts. S3 sources are URLs, not paths, and are validated elsewhere.
+ *
+ * @returns {Promise<string|null>} an error message, or null when acceptable
+ */
+// `source` is usually a SOURCE TYPE, not a path: the restore wizard posts
+// 'local' | 's3' | 'upload' and restoreService.restore() branches on those
+// literals before deriving an actual directory (see its comment at the
+// `options.source === 'local'` branch). Treating them as paths resolved
+// 'local' to <cwd>/local, failed containment, and 400'd the entire normal
+// restore workflow — so type tokens are excluded from the path check.
+const SOURCE_TYPE_TOKENS = ['local', 's3', 'upload'];
+
+async function checkRestorePathsAllowed({ source, manifestPath }) {
+  const isS3 = (v) => typeof v === 'string' && v.startsWith('s3://');
+  const isTypeToken = (v) => typeof v === 'string'
+    && SOURCE_TYPE_TOKENS.includes(v.trim().toLowerCase());
+  const candidates = [source, manifestPath]
+    .filter((v) => v && !isS3(v) && !isTypeToken(v));
+  if (candidates.length === 0) return null;
+
+  const config = await getBackupConfig();
+  const roots = [];
+  if (config.backup_destination_path) roots.push(config.backup_destination_path);
+  if (config.backup_manifest_path) roots.push(config.backup_manifest_path);
+  for (const extra of (process.env.RESTORE_ALLOWED_ROOTS || '').split(':')) {
+    if (extra.trim()) roots.push(extra.trim());
+  }
+  if (roots.length === 0) {
+    // Nothing configured to compare against — a restore can't be scoped, so
+    // don't pretend to enforce. Discovery would find nothing either.
+    return null;
+  }
+
+  const resolvedRoots = roots.map((r) => path.resolve(r));
+  for (const candidate of candidates) {
+    const resolved = path.resolve(candidate);
+    const inside = resolvedRoots.some(
+      (root) => resolved === root || resolved.startsWith(root + path.sep)
+    );
+    if (!inside) {
+      logger.warn('Refusing restore path outside the configured backup roots', {
+        candidate, roots,
+      });
+      return 'Backup source and manifest path must be inside a configured backup location';
+    }
+  }
+  return null;
+}
+
 module.exports = router;
+// Exposed for tests: the source/manifestPath containment rules (GHSA-fw4c) are
+// worth pinning directly, especially the source-TYPE-token carve-out.
+module.exports._internal = { checkRestorePathsAllowed, SOURCE_TYPE_TOKENS };

backend/src/routes/adminSystem.js

@@ -7,6 +7,7 @@ const path = require('path');
 const os = require('os');
 const { formatBoolean } = require('../utils/dbCompat');
 const logger = require('../utils/logger');
+const { resolveSqlitePath } = require('../utils/databaseEngine');
 const { checkForUpdates, getCurrentChannel, getCurrentVersion, getReleasesSince, compareVersions } = require('../services/updateCheckService');
 const { getAppSetting, upsertAppSetting } = require('../utils/appSettings');
 const { parseWhatsNew } = require('../utils/whatsNew');
@@ -218,26 +219,25 @@ router.get('/updates/instructions', adminAuth, requirePermission('settings.view'
 // Get comprehensive system status
 router.get('/status', adminAuth, requirePermission('settings.view'), async (req, res) => {
   try {
-    // Database size - check if PostgreSQL or SQLite
+    // Database size. Read the LIVE connection rather than re-deriving any of
+    // this from the environment (#1038): DATABASE_CLIENT is not the only thing
+    // that decides the engine, DB_NAME is not the only thing that decides the
+    // database, and DATABASE_PATH was ignored outright here — so a SQLite
+    // install with a custom path, or a Postgres install without an explicit
+    // DATABASE_CLIENT, reported the size of something it was not using.
     let dbSize = 0;
-    const dbClient = process.env.DATABASE_CLIENT || 'sqlite3';
-    
-    if (dbClient === 'pg') {
-      // PostgreSQL - query database size
+    const liveConnection = db.client.config.connection || {};
+
+    if (db.client.config.client === 'pg') {
       try {
-        const dbName = process.env.DB_NAME || 'picpeak';
-        const result = await db.raw(`
-          SELECT pg_database_size(?) as size
-        `, [dbName]);
+        const result = await db.raw('SELECT pg_database_size(current_database()) as size');
         dbSize = result.rows[0]?.size || 0;
       } catch (error) {
         logger.error('Error getting PostgreSQL database size:', error);
       }
     } else {
-      // SQLite - check file size
-      const dbPath = path.join(__dirname, '../../data/photo_sharing.db');
       try {
-        const stats = await fs.stat(dbPath);
+        const stats = await fs.stat(liveConnection.filename || resolveSqlitePath());
         dbSize = stats.size;
       } catch (error) {
         logger.error('Error getting SQLite database size:', error);

backend/src/routes/adminThumbnails.js

@@ -201,7 +201,13 @@ router.post('/regenerate-previews', adminAuth, requirePermission('photos.edit'),
   try {
     const { eventId } = req.body;
 
-    let query = db('photos').select('id', 'event_id', 'path', 'media_type', 'mime_type', 'preview_path');
+    // source_origin/external_relpath/filename are what ensurePreviewImage
+    // branches on for external/reference rows (#1078) — without them every
+    // external photo looks managed here and generation is skipped.
+    let query = db('photos').select(
+      'id', 'event_id', 'path', 'media_type', 'mime_type', 'preview_path',
+      'source_origin', 'external_relpath', 'filename'
+    );
     if (eventId) query = query.where('event_id', eventId);
     // Skip videos — preview tier is image-only.
     query = query.where(function() {

backend/src/routes/adminWebhooks.js

@@ -20,7 +20,7 @@ const { body, query, validationResult } = require('express-validator');
 const { db, logActivity } = require('../database/db');
 const { adminAuth } = require('../middleware/auth');
 const { requirePermission } = require('../middleware/permissions');
-const { validateExternalUrl } = require('../utils/networkValidation');
+const { validateExternalUrlAsync } = require('../utils/networkValidation');
 const webhookService = require('../services/webhookService');
 const logger = require('../utils/logger');
 
@@ -78,9 +78,9 @@ router.post(
   requirePermission('settings.edit'),
   [
     body('name').isString().trim().isLength({ min: 1, max: 100 }),
-    body('url').isString().isLength({ max: 2048 }).custom((url) => {
+    body('url').isString().isLength({ max: 2048 }).custom(async (url) => {
       if (ALLOW_PRIVATE_URLS) return true;
-      const check = validateExternalUrl(url);
+      const check = await validateExternalUrlAsync(url);
       if (!check.valid) throw new Error(check.error);
       return true;
     }),
@@ -160,9 +160,9 @@ router.put(
   requirePermission('settings.edit'),
   [
     body('name').optional().isString().trim().isLength({ min: 1, max: 100 }),
-    body('url').optional().isString().isLength({ max: 2048 }).custom((url) => {
+    body('url').optional().isString().isLength({ max: 2048 }).custom(async (url) => {
       if (ALLOW_PRIVATE_URLS) return true;
-      const check = validateExternalUrl(url);
+      const check = await validateExternalUrlAsync(url);
       if (!check.valid) throw new Error(check.error);
       return true;
     }),

backend/src/routes/customer.js

@@ -566,6 +566,7 @@ router.get('/quotes/:id/pdf', customerAuth, async (req, res) => {
     const quoteService = require('../services/quoteService');
     const buf = await quoteService.renderQuotePdfBuffer(quote.id);
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const customer = await dbi('customer_accounts').where({ id: req.customer.id }).first();
     const filename = buildPdfFilename({
       docNumber: quote.quote_number,
@@ -573,7 +574,7 @@ router.get('/quotes/:id/pdf', customerAuth, async (req, res) => {
       fallback: `quote-${quote.id}`,
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   } catch (error) {
     errorResponse(res, error, 500, 'Failed to render quote PDF');
@@ -597,6 +598,7 @@ router.get('/invoices/:id/pdf', customerAuth, async (req, res) => {
     const invoiceService = require('../services/invoiceService');
     const buf = await invoiceService.renderInvoicePdfBuffer(invoice.id);
     const { buildPdfFilename } = require('../utils/pdfFilename');
+    const { buildContentDisposition } = require('../utils/filenameSanitizer');
     const customer = await dbi('customer_accounts').where({ id: req.customer.id }).first();
     const filename = buildPdfFilename({
       docNumber: invoice.invoice_number,
@@ -604,7 +606,7 @@ router.get('/invoices/:id/pdf', customerAuth, async (req, res) => {
       fallback: `invoice-${invoice.id}`,
     });
     res.set('Content-Type', 'application/pdf');
-    res.set('Content-Disposition', `inline; filename="${filename}"`);
+    res.set('Content-Disposition', buildContentDisposition(filename, 'inline'));
     res.send(buf);
   } catch (error) {
     errorResponse(res, error, 500, 'Failed to render invoice PDF');

backend/src/routes/gallery.js

@@ -2,6 +2,11 @@ const express = require('express');
 const jwt = require('jsonwebtoken');
 const { db } = require('../database/db');
 const { formatBoolean } = require('../utils/dbCompat');
+// SQLite stores booleans as 0/1, Postgres as true/false (#1028). Strict
+// comparisons against `true`/`false` therefore read every flag backwards on
+// SQLite — parseBooleanInput normalises both engines and takes the per-column
+// default for legacy NULL rows.
+const { parseBooleanInput } = require('../utils/parsers');
 const { getAppSetting } = require('../utils/appSettings');
 const archiver = require('archiver');
 const path = require('path');
@@ -30,6 +35,7 @@ const { handleAsync, errorResponse } = require('../utils/routeHelpers');
 const { NotFoundError } = require('../utils/errors');
 const { ensureThumbnail, ensureHeroImage, ensurePreviewImage, withLocalCopy } = require('../services/imageProcessor');
 const downloadZipService = require('../services/downloadZipService');
+const { applyPhotoVisibilityFilter, canSeeHiddenPhotos } = require('../utils/photoVisibility');
 const {
   getUseOriginalFilenames,
   pickRawDownloadName,
@@ -83,9 +89,20 @@ router.get('/resolve/:identifier', handleAsync(async (req, res) => {
   }
 
   const { event, matchType, shareToken } = result;
-  const linkVariants = await buildShareLinkVariants({ slug: event.slug, shareToken });
   const requiresPassword = !(event.require_password === false || event.require_password === 0 || event.require_password === '0');
 
+  // The share_token is a bearer secret. Only return it (and the share
+  // links/URLs that embed it) when the caller already proved they hold it —
+  // i.e. they resolved via the token or the full share link. A bare *slug*
+  // lookup (slugs appear in gallery URLs and are guessable) must NOT hand
+  // back the secret, or an anonymous caller could turn a known slug into
+  // share-link access to a no-password gallery (GHSA-rh8r).
+  const callerHasToken = matchType !== 'slug';
+  if (!callerHasToken) {
+    return res.json({ slug: event.slug, matchType, requires_password: requiresPassword });
+  }
+
+  const linkVariants = await buildShareLinkVariants({ slug: event.slug, shareToken });
   res.json({
     slug: event.slug,
     token: shareToken,
@@ -522,7 +539,7 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
     // Check if feedback should be visible to guests
     const feedbackService = require('../services/feedbackService');
     const feedbackSettings = await feedbackService.getEventFeedbackSettings(req.event.id);
-    const showFeedbackToGuests = isClient || feedbackSettings.show_feedback_to_guests !== false;
+    const showFeedbackToGuests = isClient || parseBooleanInput(feedbackSettings.show_feedback_to_guests, true);
 
     // Then get comment counts separately
     const commentCounts = await db('photo_feedback')
@@ -587,7 +604,7 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
         // Per-category download flag (#640). false explicitly disables; the
         // gallery hides the download button. Defaults true so categories
         // created before migration 135 keep working.
-        allow_downloads: cat.allow_downloads !== false
+        allow_downloads: parseBooleanInput(cat.allow_downloads, true)
       }));
     }
 
@@ -614,9 +631,9 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
     const protectionSettings = {
       protection_level: req.event.protection_level || 'standard',
       image_quality: req.event.image_quality || 85,
-      use_canvas_rendering: req.event.use_canvas_rendering === true,
+      use_canvas_rendering: parseBooleanInput(req.event.use_canvas_rendering, false),
       fragmentation_level: req.event.fragmentation_level || 3,
-      overlay_protection: req.event.overlay_protection !== false
+      overlay_protection: parseBooleanInput(req.event.overlay_protection, true)
     };
 
     // Lightbox preview tier (#492). When the admin opts in, the
@@ -663,13 +680,15 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
         color_theme: req.event.color_theme,
         expires_at: req.event.expires_at,
         hero_photo_id: req.event.hero_photo_id,
-        allow_downloads: req.event.allow_downloads !== false,
-        allow_user_uploads: req.event.allow_user_uploads === true,
-        disable_right_click: req.event.disable_right_click === true,
-        watermark_downloads: req.event.watermark_downloads === true,
+        // Defaults match /info: downloads on unless explicitly disabled,
+        // uploads off unless explicitly enabled (#1028).
+        allow_downloads: parseBooleanInput(req.event.allow_downloads, true),
+        allow_user_uploads: parseBooleanInput(req.event.allow_user_uploads, false),
+        disable_right_click: parseBooleanInput(req.event.disable_right_click, false),
+        watermark_downloads: parseBooleanInput(req.event.watermark_downloads, false),
         watermark_text: req.event.watermark_text,
-        enable_devtools_protection: req.event.enable_devtools_protection === true,
-        use_canvas_rendering: req.event.use_canvas_rendering === true,
+        enable_devtools_protection: parseBooleanInput(req.event.enable_devtools_protection, false),
+        use_canvas_rendering: parseBooleanInput(req.event.use_canvas_rendering, false),
         hero_logo_visible: resolveHeroLogoVisible(req.event.hero_logo_visible, globalHeroLogoVisible),
         hero_logo_size: req.event.hero_logo_size || globalLogoSize || 'medium',
         hero_logo_position: req.event.hero_logo_position || 'top',
@@ -714,6 +733,17 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
             && (!photo.mime_type || !photo.mime_type.startsWith('video/'))
             ? `/api/gallery/${req.params.slug}/preview/${photo.id}${wmQuery}`
             : null,
+          // Slideshow source (#1015). Same preview tier, but emitted
+          // unconditionally: the slideshow has no `url` fallback worth
+          // taking (originals are projector-sized) and must never land on
+          // `hero_url`, which is cover-cropped to 16:9 — that made the
+          // "no crop" fit letterbox an already-cropped frame. The preview
+          // route generates lazily and redirects to the original on any
+          // failure, so this is safe even where no preview exists yet.
+          slideshow_url: photo.media_type !== 'video'
+            && (!photo.mime_type || !photo.mime_type.startsWith('video/'))
+            ? `/api/gallery/${req.params.slug}/preview/${photo.id}${wmQuery}`
+            : null,
           secure_url_template: `/api/secure-images/${req.params.slug}/secure/${photo.id}/{{token}}`,
           download_url_template: `/api/secure-images/${req.params.slug}/secure-download/${photo.id}/{{token}}`,
           type: photo.type,
@@ -722,7 +752,7 @@ router.get('/:slug/photos', verifyGalleryAccess, resolveGuest, async (req, res)
           // Per-category download permission (#640). Defaults true for photos
           // without a category or for categories that pre-date migration 135.
           category_allow_downloads: photo.category_id && categoryMap[photo.category_id]
-            ? categoryMap[photo.category_id].allow_downloads !== false
+            ? parseBooleanInput(categoryMap[photo.category_id].allow_downloads, true)
             : true,
           category_slug: photo.category_id && categoryMap[photo.category_id] ? categoryMap[photo.category_id].slug : null,
           size: photo.size_bytes,
@@ -784,6 +814,10 @@ router.patch('/:slug/photos/:photoId/visibility', verifyGalleryAccess, async (re
       .where({ id: photoId, event_id: req.event.id })
       .update({ visibility });
 
+    // A client hiding/showing a photo changes the guest download bundle —
+    // drop the cached ZIP so it rebuilds fresh (codex review).
+    downloadZipService.invalidate(req.event.id);
+
     res.json({ message: 'Photo visibility updated', visibility });
   } catch (error) {
     errorResponse(res, error, 500, 'Failed to update photo visibility');
@@ -812,6 +846,10 @@ router.patch('/:slug/photos/visibility/bulk', verifyGalleryAccess, async (req, r
       .where('event_id', req.event.id)
       .update({ visibility });
 
+    // Client bulk hide/show alters the guest download bundle — invalidate
+    // the cached ZIP (codex review).
+    downloadZipService.invalidate(req.event.id);
+
     res.json({ message: `${count} photos updated`, visibility });
   } catch (error) {
     errorResponse(res, error, 500, 'Failed to update photo visibility');
@@ -824,7 +862,7 @@ router.get('/:slug/download/:photoId', verifyGalleryAccess, denySlideshowToken,
     const { photoId } = req.params;
 
     // Check if downloads are allowed for this event
-    if (req.event.allow_downloads === false) {
+    if (!parseBooleanInput(req.event.allow_downloads, true)) {
       return res.status(403).json({ error: 'Downloads are disabled for this gallery' });
     }
 
@@ -848,7 +886,7 @@ router.get('/:slug/download/:photoId', verifyGalleryAccess, denySlideshowToken,
       const cat = await db('photo_categories')
         .where('id', photo.category_id)
         .first('allow_downloads');
-      if (cat && cat.allow_downloads === false) {
+      if (cat && !parseBooleanInput(cat.allow_downloads, true)) {
         return res.status(403).json({ error: 'Downloads are disabled for this category' });
       }
     }
@@ -952,12 +990,25 @@ async function bumpEventDownloadCounts(eventId) {
 router.get('/:slug/download-all', verifyGalleryAccess, denySlideshowToken, async (req, res) => {
   try {
     // Check if downloads are allowed for this event
-    if (req.event.allow_downloads === false) {
+    if (!parseBooleanInput(req.event.allow_downloads, true)) {
       return res.status(403).json({ error: 'Downloads are disabled for this gallery' });
     }
 
-    // Try to serve pre-generated zip (instant download with Content-Length)
-    const zipInfo = await downloadZipService.getZipInfo(req.event.id);
+    // Try to serve pre-generated zip (instant download with Content-Length).
+    // Guests may use the prebuilt cache ONLY when the event has no hidden
+    // photos: a cache built before a photo was hidden — or before this
+    // visibility-aware builder shipped — could otherwise still leak it, and
+    // getZipInfo only checks the DB pointer + file stat, not freshness. When
+    // hidden photos exist, guests fall through to the visibility-filtered
+    // stream below. PIN-clients always stream a full archive.
+    const isClient = canSeeHiddenPhotos(req.accessLevel);
+    const eventHasHidden = await db('photos')
+      .where({ event_id: req.event.id, visibility: 'hidden' })
+      .first()
+      .then(Boolean);
+    const zipInfo = (isClient || eventHasHidden)
+      ? null
+      : await downloadZipService.getZipInfo(req.event.id);
     if (zipInfo) {
       const storage = getStorage();
 
@@ -1006,23 +1057,31 @@ router.get('/:slug/download-all', verifyGalleryAccess, denySlideshowToken, async
       return;
     }
 
-    // Fallback: on-the-fly streaming (existing behavior)
-    // Also trigger background zip generation for next time
-    downloadZipService.generateZip(req.event.id).catch(err =>
-      logger.warn('Background zip generation failed', { eventId: req.event.id, error: err.message })
-    );
+    // Fallback: on-the-fly streaming (existing behavior). Only pre-build the
+    // guest cache when it will actually be served next time — a guest
+    // download of an event with no hidden photos. Client bypasses and
+    // hidden-photo events always stream, so rebuilding the guest archive on
+    // those requests is wasted I/O (codex review).
+    if (!isClient && !eventHasHidden) {
+      downloadZipService.generateZip(req.event.id).catch(err =>
+        logger.warn('Background zip generation failed', { eventId: req.event.id, error: err.message })
+      );
+    }
 
     // Fetch photos — exclude photos in categories that disabled downloads (#640).
     // Uncategorised photos are always included; categories without the column
     // (pre-migration-135) fall through the LEFT JOIN's null and are included.
-    const photos = await db('photos')
-      .leftJoin('photo_categories', 'photos.category_id', 'photo_categories.id')
-      .where('photos.event_id', req.event.id)
-      .where(function () {
-        this.whereNull('photos.category_id')
-          .orWhere('photo_categories.allow_downloads', true)
-          .orWhereNull('photo_categories.allow_downloads');
-      })
+    const photos = await applyPhotoVisibilityFilter(
+      db('photos')
+        .leftJoin('photo_categories', 'photos.category_id', 'photo_categories.id')
+        .where('photos.event_id', req.event.id)
+        .where(function () {
+          this.whereNull('photos.category_id')
+            .orWhere('photo_categories.allow_downloads', true)
+            .orWhereNull('photo_categories.allow_downloads');
+        }),
+      req.accessLevel
+    )
       .select('photos.*')
       .orderBy('photos.type', 'asc')
       .orderBy('photos.uploaded_at', 'desc');
@@ -1151,7 +1210,7 @@ router.get('/:slug/download-all', verifyGalleryAccess, denySlideshowToken, async
 router.post('/:slug/download-selected', verifyGalleryAccess, denySlideshowToken, async (req, res) => {
   try {
     // Check if downloads are allowed for this event
-    if (req.event.allow_downloads === false) {
+    if (!parseBooleanInput(req.event.allow_downloads, true)) {
       return res.status(403).json({ error: 'Downloads are disabled for this gallery' });
     }
 
@@ -1172,15 +1231,18 @@ router.post('/:slug/download-selected', verifyGalleryAccess, denySlideshowToken,
 
     // Fetch photos — exclude photos in categories that disabled downloads (#640).
     // Same LEFT JOIN pattern as the download-all endpoint.
-    const photos = await db('photos')
-      .leftJoin('photo_categories', 'photos.category_id', 'photo_categories.id')
-      .where('photos.event_id', req.event.id)
-      .whereIn('photos.id', photoIds)
-      .where(function () {
-        this.whereNull('photos.category_id')
-          .orWhere('photo_categories.allow_downloads', true)
-          .orWhereNull('photo_categories.allow_downloads');
-      })
+    const photos = await applyPhotoVisibilityFilter(
+      db('photos')
+        .leftJoin('photo_categories', 'photos.category_id', 'photo_categories.id')
+        .where('photos.event_id', req.event.id)
+        .whereIn('photos.id', photoIds)
+        .where(function () {
+          this.whereNull('photos.category_id')
+            .orWhere('photo_categories.allow_downloads', true)
+            .orWhereNull('photo_categories.allow_downloads');
+        }),
+      req.accessLevel
+    )
       .select('photos.*')
       .orderBy('photos.uploaded_at', 'desc');
 
@@ -1828,26 +1890,11 @@ router.get('/:slug/preview/:photoId',
   }
 );
 
-// Get feedback settings for gallery
-router.get('/:slug/feedback-settings', verifyGalleryAccess, async (req, res) => {
-  try {
-    const feedbackService = require('../services/feedbackService');
-    const settings = await feedbackService.getEventFeedbackSettings(req.event.id);
-    
-    res.json({
-      feedback_enabled: settings.feedback_enabled || false,
-      allow_ratings: settings.allow_ratings,
-      allow_likes: settings.allow_likes,
-      allow_comments: settings.allow_comments,
-      allow_favorites: settings.allow_favorites,
-      show_feedback_to_guests: settings.show_feedback_to_guests,
-      require_name_email: settings.require_name_email || false,
-      identity_mode: settings.identity_mode || 'simple'
-    });
-  } catch (error) {
-    errorResponse(res, error, 500, 'Failed to fetch feedback settings');
-  }
-});
+// GET /:slug/feedback-settings lives in galleryFeedback.js. A duplicate of it
+// used to sit here, and since server.js mounts galleryRoutes before
+// galleryFeedback it shadowed the real handler — dropping the per-guest caps
+// (#655) from the guest payload, so the gallery could never render the
+// favorite/like limits or their counters (#1030).
 
 // Get photo stats
 router.get('/:slug/stats', verifyGalleryAccess, async (req, res) => {

backend/src/routes/protectedImages.js

@@ -7,6 +7,7 @@ const secureImageService = require('../services/secureImageService');
 const { getStorage } = require('../services/storage');
 const { resolvePhotoStorageKey, resolvePhotoFilePath } = require('../services/photoResolver');
 const { withLocalCopy } = require('../services/imageProcessor');
+const { isPhotoHiddenFromViewer, canSeeHiddenPhotos } = require('../utils/photoVisibility');
 const crypto = require('crypto');
 const logger = require('../utils/logger');
 const { timingSafeEqualStr } = require('../utils/timingSafe');
@@ -16,10 +17,14 @@ const router = express.Router();
 /**
  * Generate a signed URL token for image access
  */
-function generateImageToken(photoId, expiresIn = 3600) {
+function generateImageToken(photoId, expiresIn = 3600, clientBypass = false) {
   const secret = process.env.JWT_SECRET;
   const expires = Date.now() + (expiresIn * 1000);
-  const data = `${photoId}:${expires}`;
+  // Third segment: whether the minter was a PIN-client, letting the serve
+  // route still deliver a photo hidden AFTER minting (TOCTOU) — a guest's
+  // token carries 0, so it stops working the moment the photo is hidden.
+  // Old two-segment tokens verify unchanged and read the flag as no-bypass.
+  const data = `${photoId}:${expires}:${clientBypass ? 1 : 0}`;
   const signature = crypto.createHmac('sha256', secret).update(data).digest('hex');
   return `${Buffer.from(data).toString('base64')}.${signature}`;
 }
@@ -32,20 +37,23 @@ function verifyImageToken(token) {
     const secret = process.env.JWT_SECRET;
     const [data, signature] = token.split('.');
     const decoded = Buffer.from(data, 'base64').toString();
-    const [photoId, expires] = decoded.split(':');
-    
+    const [photoId, expires, clientFlag] = decoded.split(':');
+
     // Verify signature (constant-time — avoids leaking the HMAC byte-by-byte)
     const expectedSignature = crypto.createHmac('sha256', secret).update(decoded).digest('hex');
     if (!timingSafeEqualStr(signature, expectedSignature)) {
       return null;
     }
-    
+
     // Check expiration
     if (Date.now() > parseInt(expires)) {
       return null;
     }
-    
-    return { photoId: parseInt(photoId), expires: parseInt(expires) };
+    return {
+      photoId: parseInt(photoId),
+      expires: parseInt(expires),
+      clientBypass: clientFlag === '1',
+    };
   } catch (error) {
     return null;
   }
@@ -79,6 +87,12 @@ router.get('/:slug/photo/:photoId/view', verifyGalleryAccess, async (req, res) =
       return res.status(404).json({ error: 'Photo not found' });
     }
 
+    // Block guest access to hidden/client-only photos (parity with the
+    // gallery single-photo routes).
+    if (isPhotoHiddenFromViewer(photo, req.accessLevel)) {
+      return res.status(403).json({ error: 'Photo not available' });
+    }
+
     // Check for suspicious activity
     const isSuspicious = await secureImageService.detectSuspiciousActivity(clientFingerprint, photoId);
     if (isSuspicious) {
@@ -191,15 +205,23 @@ router.post('/:slug/photo/:photoId/generate-secure-token', verifyGalleryAccess,
       return res.status(404).json({ error: 'Photo not found' });
     }
 
+    // Don't mint a secure-image capability for a hidden/client-only photo
+    // when the caller isn't a client — the serve route is token-only.
+    if (isPhotoHiddenFromViewer(photo, req.accessLevel)) {
+      return res.status(403).json({ error: 'Photo not available' });
+    }
+
     // Create client fingerprint
     const clientFingerprint = secureImageService.createClientFingerprint(req);
-    
-    // Generate secure token
+
+    // Generate secure token. clientBypass lets a client's token keep serving
+    // a photo hidden after minting; a guest's stops at the serve route.
     const token = secureImageService.generateSecureToken(photoId, req.sessionID || 'anonymous', {
       expiresIn,
       maxUses: protectionLevel === 'maximum' ? 1 : 3,
       clientFingerprint,
-      protectionLevel
+      protectionLevel,
+      clientBypass: canSeeHiddenPhotos(req.accessLevel)
     });
     
     res.json({ 
@@ -233,9 +255,19 @@ router.post('/:slug/photo/:photoId/generate-url', verifyGalleryAccess, async (re
     if (!photo) {
       return res.status(404).json({ error: 'Photo not found' });
     }
-    
-    // Generate signed token
-    const token = generateImageToken(photoId);
+
+    // Refuse to mint a signed URL for a hidden/client-only photo when the
+    // caller isn't a client. The signed-serve route below is token-only
+    // (no gallery auth), so the access decision has to happen here at mint
+    // time — mirroring how the reveal-bypass flag is baked into the token.
+    if (isPhotoHiddenFromViewer(photo, req.accessLevel)) {
+      return res.status(403).json({ error: 'Photo not available' });
+    }
+
+    // Generate signed token. The client-bypass flag lets a PIN-client's
+    // token keep serving a photo hidden after minting; a guest's token
+    // (clientBypass=0) stops the moment the photo is hidden.
+    const token = generateImageToken(photoId, 3600, canSeeHiddenPhotos(req.accessLevel));
     const signedUrl = `/api/images/${req.params.slug}/photo/${photoId}/signed/${token}`;
     
     res.json({ 
@@ -283,7 +315,14 @@ router.get('/:slug/photo/:photoId/signed/:token', async (req, res) => {
     if (!photo) {
       return res.status(404).json({ error: 'Photo not found' });
     }
-    
+
+    // Recheck visibility at serve time (TOCTOU): a photo hidden AFTER the
+    // URL was minted must stop serving, unless the token was minted by a
+    // client (clientBypass) — mirroring the reveal-mode check above.
+    if (photo.visibility === 'hidden' && !tokenData.clientBypass) {
+      return res.status(403).json({ error: 'Photo not available' });
+    }
+
     // Get watermark settings
     const watermarkSettings = await watermarkService.getWatermarkSettings();
 

backend/src/routes/secureImages.js

@@ -5,6 +5,7 @@ const secureImageService = require('../services/secureImageService');
 const secureImageMiddleware = require('../middleware/secureImageMiddleware');
 const logger = require('../utils/logger');
 const { formatBoolean } = require('../utils/dbCompat');
+const { parseBooleanInput } = require('../utils/parsers');
 const { resolvePhotoFilePath, resolvePhotoStorageKey } = require('../services/photoResolver');
 const { withLocalCopy } = require('../services/imageProcessor');
 const { getStorage } = require('../services/storage');
@@ -13,6 +14,7 @@ const {
   pickRawDownloadName,
 } = require('../services/downloadFilenameService');
 const { buildContentDisposition } = require('../utils/filenameSanitizer');
+const { isPhotoHiddenFromViewer, canSeeHiddenPhotos } = require('../utils/photoVisibility');
 
 const router = express.Router();
 
@@ -40,6 +42,12 @@ router.post('/:slug/generate-token', async (req, res, next) => {
       return res.status(404).json({ error: 'Photo not found' });
     }
 
+    // Don't mint a secure-image capability for a hidden/client-only photo
+    // when the caller isn't a client (the token is reusable up to 3×).
+    if (isPhotoHiddenFromViewer(photo, req.accessLevel)) {
+      return res.status(403).json({ error: 'Photo not available' });
+    }
+
     // Create client fingerprint
     const clientFingerprint = secureImageService.createClientFingerprint(req);
     
@@ -51,7 +59,10 @@ router.post('/:slug/generate-token', async (req, res, next) => {
       expiresIn: protectionLevel === 'maximum' ? 180 : 300, // 3-5 minutes
       maxUses: accessType === 'download' ? 1 : 3,
       clientFingerprint,
-      protectionLevel
+      protectionLevel,
+      // TOCTOU: a client's token keeps serving a photo hidden after minting;
+      // a guest's stops the moment it's hidden (checked at the serve route).
+      clientBypass: canSeeHiddenPhotos(req.accessLevel)
     };
 
     const token = secureImageService.generateSecureToken(
@@ -174,6 +185,13 @@ router.get('/:slug/secure/:photoId/:token',
         return res.status(404).json({ error: 'Photo not found' });
       }
 
+      // Recheck visibility at serve time (TOCTOU): a photo hidden AFTER the
+      // token was minted must stop serving, unless the token was minted by a
+      // client (clientBypass) — mirroring the reveal-mode check above.
+      if (photo.visibility === 'hidden' && !tokenValidation.data?.clientBypass) {
+        return res.status(403).json({ error: 'Photo not available' });
+      }
+
       // Resolve photo through storage backend (managed) or fall back to local
       // path (external reference mode). secureImageService needs a local file,
       // so we materialize a tmp copy via withLocalCopy in S3 mode.
@@ -306,8 +324,9 @@ router.get('/:slug/secure-download/:photoId/:token',
     try {
       const { photoId, token } = req.params;
 
-      // Check if downloads are allowed
-      if (req.event.allow_downloads === false) {
+      // Check if downloads are allowed. SQLite stores the flag as 0/1, so a
+      // strict `=== false` never fired there and the guard was inert (#1028).
+      if (!parseBooleanInput(req.event.allow_downloads, true)) {
         return res.status(403).json({ error: 'Downloads are disabled for this gallery' });
       }
 
@@ -321,6 +340,14 @@ router.get('/:slug/secure-download/:photoId/:token',
         return res.status(403).json({ error: 'Invalid or expired token' });
       }
 
+      // Bind the token to the photo it was minted for (GHSA-crxv) — the
+      // /secure serve route does this, but secure-download did not, so a
+      // token minted for photo A could download photo B (incl. a hidden one).
+      const tokenPhotoId = Number(tokenValidation.data?.photoId);
+      if (!Number.isInteger(tokenPhotoId) || tokenPhotoId !== Number(photoId)) {
+        return res.status(403).json({ error: 'Token not valid for this photo' });
+      }
+
       // Verify photo exists
       const photo = await db('photos')
         .where({ id: photoId, event_id: req.event.id })
@@ -330,6 +357,23 @@ router.get('/:slug/secure-download/:photoId/:token',
         return res.status(404).json({ error: 'Photo not found' });
       }
 
+      // Block guest access to hidden/client-only photos.
+      if (isPhotoHiddenFromViewer(photo, req.accessLevel)) {
+        return res.status(403).json({ error: 'Photo not available' });
+      }
+
+      // Per-category download opt-out (#640) — the regular single-photo
+      // download enforces this too; the secure path skipped it. SQLite
+      // returns the boolean as numeric 0, so check both forms.
+      if (photo.category_id) {
+        const cat = await db('photo_categories')
+          .where('id', photo.category_id)
+          .first('allow_downloads');
+        if (cat && (cat.allow_downloads === false || cat.allow_downloads === 0)) {
+          return res.status(403).json({ error: 'Downloads are disabled for this category' });
+        }
+      }
+
       // Resolve photo through storage backend (managed) or local disk (external).
       const storageKey = resolvePhotoStorageKey(req.event, photo);
 

backend/src/routes/v1/__tests__/events.category.test.js

@@ -43,10 +43,24 @@ jest.mock('../../../database/db', () => {
   };
 });
 
+// RBAC is enforced on these routes since GHSA-9697 (requirePermission), but
+// this suite mocks the database, so a real permission lookup would 500. These
+// tests cover route logic, not authorization — the intersection of token
+// scopes and role permissions is pinned in __tests__/routes/v1EventOwnership.
+jest.mock('../../../middleware/permissions', () => ({
+  requirePermission: () => (_req, _res, next) => next(),
+  userHasAnyPermission: async () => true,
+  userHasAllPermissions: async () => true,
+}));
+
 jest.mock('../../../middleware/apiTokenAuth', () => ({
   apiTokenAuth: (req, _res, next) => {
     req.apiToken = { id: 1, admin_id: 1, scopes: ['write'] };
-    req.admin = { id: 1, username: 'token-admin' };
+    // roleName matters since GHSA-9697: requireEventOwnership now guards this
+    // route. super_admin short-circuits it without issuing a DB query, which
+    // keeps this suite's sequenced dbMock chains aligned — this suite is about
+    // category scoping, not ownership (see v1EventOwnership.test.js for that).
+    req.admin = { id: 1, username: 'token-admin', roleName: 'super_admin' };
     next();
   },
   requireApiScope: () => (_req, _res, next) => next(),

backend/src/routes/v1/__tests__/events.create.test.js

@@ -51,6 +51,16 @@ jest.mock('../../../database/db', () => {
   };
 });
 
+// RBAC is enforced on these routes since GHSA-9697 (requirePermission), but
+// this suite mocks the database, so a real permission lookup would 500. These
+// tests cover route logic, not authorization — the intersection of token
+// scopes and role permissions is pinned in __tests__/routes/v1EventOwnership.
+jest.mock('../../../middleware/permissions', () => ({
+  requirePermission: () => (_req, _res, next) => next(),
+  userHasAnyPermission: async () => true,
+  userHasAllPermissions: async () => true,
+}));
+
 jest.mock('../../../middleware/apiTokenAuth', () => ({
   apiTokenAuth: (req, _res, next) => {
     req.apiToken = { id: 1, admin_id: 1, scopes: ['admin'] };

backend/src/routes/v1/events.js

@@ -20,6 +20,15 @@ const sharp = require('sharp');
 const { body, query, validationResult } = require('express-validator');
 const { db, logActivity } = require('../../database/db');
 const { apiTokenAuth, requireApiScope } = require('../../middleware/apiTokenAuth');
+const { requireEventOwnership, scopeEventsQuery } = require('../../middleware/ownership');
+// GHSA-9697: migration 081 defines a token's effective permissions as the
+// INTERSECTION of the owner's role permissions and the token's scope flags.
+// requireApiScope only ever checked the scope half — so a token minted while
+// its owner was super_admin kept full write access after the owner was demoted
+// to viewer (userManagementService never touches api_tokens). These
+// requirePermission gates supply the missing half; they key on req.admin.id,
+// which apiTokenAuth populates.
+const { requirePermission } = require('../../middleware/permissions');
 const { buildShareLinkVariants } = require('../../services/shareLinkService');
 const { generateThumbnail } = require('../../services/imageProcessor');
 const logger = require('../../utils/logger');
@@ -115,6 +124,7 @@ router.post(
   '/events',
   apiTokenAuth,
   requireApiScope('admin'),
+  requirePermission('events.create'),
   [
     body('event_name').isString().trim().notEmpty(),
     body('event_type').isIn(['wedding', 'birthday', 'corporate', 'other', 'family']),
@@ -419,6 +429,7 @@ router.get(
   '/events',
   apiTokenAuth,
   requireApiScope('read'),
+  requirePermission('events.view'),
   [
     query('page').optional().isInt({ min: 1 }).toInt(),
     query('limit').optional().isInt({ min: 1, max: 100 }).toInt()
@@ -429,14 +440,19 @@ router.get(
       const limit = req.query.limit || 25;
       const offset = (page - 1) * limit;
 
+      // Scope to events the token owner may see (GHSA-9697). Previously this
+      // listed every event on the instance regardless of who owned the token.
       const [events, totalRow] = await Promise.all([
-        db('events')
-          .select('id', 'slug', 'event_name', 'event_type', 'event_date', 'expires_at',
-            'is_active', 'is_archived', 'is_draft', 'created_at')
+        scopeEventsQuery(
+          db('events')
+            .select('id', 'slug', 'event_name', 'event_type', 'event_date', 'expires_at',
+              'is_active', 'is_archived', 'is_draft', 'created_at'),
+          req.admin
+        )
           .orderBy('created_at', 'desc')
           .limit(limit)
           .offset(offset),
-        db('events').count('id as count').first()
+        scopeEventsQuery(db('events').count('id as count'), req.admin).first()
       ]);
       const total = parseInt(totalRow?.count || 0, 10);
       res.json({ events, pagination: { page, limit, total } });
@@ -467,7 +483,7 @@ router.get(
  *       200: { description: Event details }
  *       404: { description: Not found }
  */
-router.get('/events/:id', apiTokenAuth, requireApiScope('read'), async (req, res) => {
+router.get('/events/:id', apiTokenAuth, requireApiScope('read'), requirePermission('events.view'), requireEventOwnership, async (req, res) => {
   try {
     const event = await db('events').where({ id: req.params.id }).first();
     if (!event) return res.status(404).json({ error: 'Event not found' });
@@ -533,6 +549,8 @@ router.post(
   '/events/:id/photos',
   apiTokenAuth,
   requireApiScope('write'),
+  requirePermission('photos.upload'),
+  requireEventOwnership,
   photoUpload.single('photo'),
   async (req, res) => {
     let tempPath = null;
@@ -685,7 +703,7 @@ router.post(
  *                 share_url: { type: string, format: uri }
  *       404: { description: Not found }
  */
-router.get('/events/:id/share-link', apiTokenAuth, requireApiScope('read'), async (req, res) => {
+router.get('/events/:id/share-link', apiTokenAuth, requireApiScope('read'), requirePermission('events.view'), requireEventOwnership, async (req, res) => {
   try {
     const event = await db('events').where({ id: req.params.id }).first();
     if (!event) return res.status(404).json({ error: 'Event not found' });

backend/src/services/archiveService.js

@@ -1,4 +1,5 @@
 const archiver = require('archiver');
+const { neutralizeSpreadsheetFormula } = require('../utils/spreadsheetSafe');
 const fs = require('fs');
 const fsp = require('fs').promises;
 const path = require('path');
@@ -261,12 +262,13 @@ function convertToCSV(data) {
 
   const csvRows = data.map(row => {
     return headers.map(header => {
-      const value = row[header];
-      // Escape quotes and wrap in quotes if contains comma
-      if (typeof value === 'string' && (value.includes(',') || value.includes('"'))) {
+      // Formula-neutralize before quoting (guest_name/comment_text are
+      // user-controlled); the old check didn't even escape \n/\r (GHSA-q82f).
+      const value = neutralizeSpreadsheetFormula(row[header]);
+      if (value.includes(',') || value.includes('"') || value.includes('\n') || value.includes('\r')) {
         return `"${value.replace(/"/g, '""')}"`;
       }
-      return value || '';
+      return value;
     }).join(',');
   });
 

backend/src/services/backupCoverageService.js

@@ -40,11 +40,17 @@
 
 const fs = require('fs').promises;
 const path = require('path');
+const { getStoragePath } = require('../config/storage');
 const { db } = require('../database/db');
 const logger = require('../utils/logger');
 const backupService = require('./backupService');
 
-const STORAGE_ROOT = () => process.env.STORAGE_PATH || path.join(process.cwd(), 'storage');
+// The shared resolver, not a second `STORAGE_PATH || cwd` expression. With
+// STORAGE_PATH unset the two disagree — getStoragePath() falls back
+// module-relative while cwd is normally backend/ — and this diagnostic would
+// then report the business-docs tree as missing while the backup walker, which
+// uses the module-relative root, was backing it up correctly.
+const STORAGE_ROOT = () => getStoragePath();
 
 /**
  * Top-level subdirectories we expect to find under STORAGE_PATH but

backend/src/services/backupIntegrityService.js

@@ -49,12 +49,18 @@
  */
 
 const fs = require('fs');
+const { getStoragePath } = require('../config/storage');
 const crypto = require('crypto');
 const path = require('path');
 const { db } = require('../database/db');
 const logger = require('../utils/logger');
 
-const STORAGE_ROOT = () => process.env.STORAGE_PATH || path.join(process.cwd(), 'storage');
+// The shared resolver, not a second `STORAGE_PATH || cwd` expression. With
+// STORAGE_PATH unset the two disagree — getStoragePath() falls back
+// module-relative while cwd is normally backend/ — and this diagnostic would
+// then report the business-docs tree as missing while the backup walker, which
+// uses the module-relative root, was backing it up correctly.
+const STORAGE_ROOT = () => getStoragePath();
 
 /**
  * Every column the verifier walks, declared once so the test suite

backend/src/services/backupManifest.js

@@ -134,7 +134,10 @@ class BackupManifestGenerator {
       }
     };
 
-    // Calculate total checksum of the manifest
+    // Calculate total checksum of the manifest. Records WHICH algorithm was
+    // used so validation can tell a keyed manifest from a legacy unkeyed one
+    // (GHSA-hgp8).
+    manifest.verification.checksum_algorithm = this.getManifestKey() ? 'hmac-sha256' : 'sha256';
     manifest.verification.total_checksum = this.calculateManifestChecksum(manifest);
 
     return manifest;
@@ -227,11 +230,15 @@ class BackupManifestGenerator {
       throw new Error('File count mismatch');
     }
 
-    // Validate total checksum
-    const calculatedChecksum = this.calculateManifestChecksum(manifest);
-    if (manifest.verification.total_checksum !== calculatedChecksum) {
-      throw new Error('Manifest checksum verification failed');
+    // Validate total checksum (GHSA-hgp8) — delegated so every caller shares
+    // the same fallback rules. restoreService.performPreRestoreValidation()
+    // used to recompute the digest itself with the default (canonical, keyed)
+    // settings, which silently rejected every pre-existing backup.
+    const checksumResult = this.verifyManifestChecksum(manifest);
+    if (!checksumResult.valid) {
+      throw new Error(checksumResult.error || 'Manifest checksum verification failed');
     }
+    checksumResult.warnings.forEach((w) => logger.warn(w));
 
     logger.info('Manifest validation passed');
     return true;
@@ -327,6 +334,7 @@ class BackupManifestGenerator {
     // otherwise validateManifest() rejects the loaded manifest because
     // generateManifest() stamped a checksum that did NOT include this
     // section.
+    fullManifest.verification.checksum_algorithm = this.getManifestKey() ? 'hmac-sha256' : 'sha256';
     fullManifest.verification.total_checksum = this.calculateManifestChecksum(fullManifest);
 
     return fullManifest;
@@ -439,16 +447,167 @@ class BackupManifestGenerator {
     }
   }
 
-  calculateManifestChecksum(manifest) {
+  /**
+   * GHSA-hgp8: the plain SHA-256 below proves the manifest wasn't CORRUPTED,
+   * not that it is AUTHENTIC — anyone who can rewrite the file can recompute
+   * it. Setting BACKUP_MANIFEST_KEY upgrades new manifests to a keyed HMAC,
+   * which matters when the backup store is a different trust domain from the
+   * host (S3 bucket creds != host creds).
+   *
+   * Deliberately OPT-IN and verify-if-present: the key cannot live in the
+   * database (the database is inside the backup), so a mandatory HMAC would
+   * lock an operator out of the exact disaster-recovery case this system
+   * exists for — total host loss, fresh install, only the backup survives.
+   * Unkeyed manifests therefore still validate, and a keyed manifest is only
+   * held to the keyed check when a key is configured.
+   */
+  getManifestKey() {
+    const key = process.env.BACKUP_MANIFEST_KEY;
+    return typeof key === 'string' && key.trim() ? key.trim() : null;
+  }
+
+  /**
+   * Single source of truth for "does this manifest's checksum verify?"
+   * (GHSA-hgp8). Returns a result object rather than throwing so callers can
+   * surface warnings without duplicating the fallback rules — a duplicated
+   * check in restoreService recomputed the digest with the default canonical
+   * serializer and rejected every manifest written before that change.
+   *
+   * Rules, in order:
+   *   - keyed manifest + no key configured  → cannot verify; accept with a
+   *     loud warning (refusing would brick recovery when the key was lost with
+   *     the host, which is exactly when a restore is needed), UNLESS
+   *     BACKUP_MANIFEST_REQUIRE_KEYED is set.
+   *   - unkeyed manifest + key configured   → possible downgrade. Accepted with
+   *     a warning by default for backward compatibility; rejected when
+   *     BACKUP_MANIFEST_REQUIRE_KEYED is set, which is the setting an operator
+   *     turns on once all their backups are keyed.
+   *   - digest mismatch → retry with the legacy (pre-canonicalization)
+   *     serialization so old backups stay restorable, then fail.
+   *   - no checksum at all → reject. Every manifest this codebase has ever
+   *     written stamps `verification.total_checksum` (generateManifest and
+   *     the incremental path both do), so an absent one means the manifest
+   *     was rewritten — and accepting it would let an attacker strip the
+   *     field to skip verification entirely, walking straight past both the
+   *     downgrade guard and BACKUP_MANIFEST_REQUIRE_KEYED.
+   *
+   * @returns {{valid: boolean, error?: string, warnings: string[]}}
+   */
+  verifyManifestChecksum(manifest) {
+    const warnings = [];
+    if (!manifest?.verification?.total_checksum) {
+      return {
+        valid: false,
+        error: 'Manifest carries no checksum — refusing to treat an unverifiable manifest as authentic',
+        warnings,
+      };
+    }
+
+    const declaredAlgorithm = manifest.verification.checksum_algorithm || 'sha256';
+    const key = this.getManifestKey();
+    const requireKeyed = /^(1|true|yes)$/i.test(String(process.env.BACKUP_MANIFEST_REQUIRE_KEYED || ''));
+
+    if (declaredAlgorithm === 'hmac-sha256' && !key) {
+      if (requireKeyed) {
+        return {
+          valid: false,
+          error: 'Manifest is keyed but BACKUP_MANIFEST_KEY is not set (BACKUP_MANIFEST_REQUIRE_KEYED is on)',
+          warnings,
+        };
+      }
+      warnings.push(
+        'Manifest declares a keyed checksum but BACKUP_MANIFEST_KEY is not set — '
+        + 'authenticity cannot be verified. Set the key to enable verification.'
+      );
+      return { valid: true, warnings };
+    }
+
+    // Downgrade guard: with a key configured, an attacker who can rewrite the
+    // backup store could otherwise strip checksum_algorithm, edit the manifest
+    // and recompute a plain SHA-256 that we would happily accept. Rejecting
+    // that by default would break every pre-key backup, so it is opt-in.
+    //
+    // The strict rejection must NOT be conditional on a key being configured:
+    // strict mode is a statement about the manifests ("all mine are keyed"),
+    // not about this host. Gating it on `key` made the flag fail open on
+    // exactly the fresh disaster-recovery host that is missing the secret.
+    if (declaredAlgorithm !== 'hmac-sha256') {
+      if (requireKeyed) {
+        return {
+          valid: false,
+          error: 'Manifest is not keyed but BACKUP_MANIFEST_REQUIRE_KEYED is on — refusing a possible checksum downgrade',
+          warnings,
+        };
+      }
+      if (key) {
+        warnings.push(
+          'Manifest uses an unkeyed checksum while BACKUP_MANIFEST_KEY is set — integrity verified, '
+          + 'authenticity NOT established (a rewritten manifest could have downgraded the algorithm). '
+          + 'Set BACKUP_MANIFEST_REQUIRE_KEYED=true once all backups are keyed.'
+        );
+      }
+    }
+
+    const keyedArg = declaredAlgorithm === 'hmac-sha256' ? key : false;
+    const expected = manifest.verification.total_checksum;
+
+    if (expected === this.calculateManifestChecksum(manifest, { keyed: keyedArg })) {
+      return { valid: true, warnings };
+    }
+    // Pre-canonicalization manifests hashed a serialization that omitted
+    // nested fields; accept those so existing backups stay restorable.
+    if (expected === this.calculateManifestChecksum(manifest, { keyed: keyedArg, legacy: true })) {
+      warnings.push(
+        'Manifest uses the legacy checksum serialization, which did not cover the file list — '
+        + 'integrity of file paths/sizes is unverified. Re-run a backup to upgrade it.'
+      );
+      return { valid: true, warnings };
+    }
+    return { valid: false, error: 'Manifest checksum verification failed', warnings };
+  }
+
+  /**
+   * Canonical JSON: object keys sorted recursively so the digest is stable
+   * regardless of property insertion order, and — critically — so NESTED
+   * values are actually covered.
+   *
+   * The previous implementation passed `Object.keys(manifest).sort()` as
+   * JSON.stringify's second argument. That parameter is an array *replacer*
+   * (a property allowlist applied at every depth), not a key sorter, so every
+   * nested key absent from that top-level list — `path`, `size`, per-file
+   * `checksum` — was dropped before hashing. The file list was therefore
+   * outside the "integrity" check entirely: a manifest path could be rewritten
+   * to `../../etc/passwd` without disturbing the checksum.
+   */
+  canonicalize(value) {
+    if (Array.isArray(value)) return value.map((v) => this.canonicalize(v));
+    if (value && typeof value === 'object') {
+      return Object.keys(value).sort().reduce((acc, k) => {
+        acc[k] = this.canonicalize(value[k]);
+        return acc;
+      }, {});
+    }
+    return value;
+  }
+
+  calculateManifestChecksum(manifest, { keyed = null, legacy = false } = {}) {
     // Create a copy without the checksum field
     const manifestCopy = JSON.parse(JSON.stringify(manifest));
     if (manifestCopy.verification) {
       delete manifestCopy.verification.total_checksum;
+      delete manifestCopy.verification.checksum_algorithm;
     }
 
-    // Calculate SHA256 of the sorted JSON
-    const content = JSON.stringify(manifestCopy, Object.keys(manifestCopy).sort());
-    return crypto.createHash('sha256').update(content).digest('hex');
+    // `legacy` reproduces the old (under-covering) serialization so manifests
+    // written by earlier versions still validate — see validateManifest.
+    const content = legacy
+      ? JSON.stringify(manifestCopy, Object.keys(manifestCopy).sort())
+      : JSON.stringify(this.canonicalize(manifestCopy));
+
+    const key = keyed === null ? this.getManifestKey() : keyed;
+    return key
+      ? crypto.createHmac('sha256', key).update(content).digest('hex')
+      : crypto.createHash('sha256').update(content).digest('hex');
   }
 
   /**

backend/src/services/backupService.js

@@ -845,6 +845,14 @@ function parseRsyncStats(output) {
 
 async function performRsyncBackup(config, files) {
   const { spawnAsync } = require('../utils/safeExec');
+  // SSRF: the /test-connection route validates the host, but a scheduled or
+  // manual /run reaches here directly with the stored host. Resolve-and-vet
+  // it right before ssh/rsync does its own DNS at connect time, so a host
+  // that resolves to an internal address can't be reached (GHSA-4jh8).
+  const { isHostAllowed } = require('../utils/networkValidation');
+  if (!(await isHostAllowed(config.backup_rsync_host))) {
+    throw new Error('rsync host resolves to a private or internal network address');
+  }
   // Anchored excludes for the de-selected What-to-Backup paths; rsync
   // otherwise transfers the whole storage root regardless of the walker's
   // file list (which only feeds manifests and file state).

backend/src/services/contract/crud.js

@@ -205,7 +205,7 @@ async function createContract(payload, adminId) {
     }
     const inserted = await trx('contracts').insert(row).returning('id');
     if (row.project_id && row.deal_uuid) {
-      await require('../projectService').linkDealToProject(row.deal_uuid, row.project_id, trx);
+      await require('../projectService').linkDealToProject(row.deal_uuid, row.project_id, trx, { id: adminId });
     }
     const contractId = typeof inserted[0] === 'object' ? inserted[0].id : inserted[0];
 
@@ -302,7 +302,7 @@ async function updateContract(id, payload, adminId) {
     // Cascade across the deal lineage (linked quote / event / invoices).
     if (updates.project_id) {
       const dealRow = await trx('contracts').where({ id }).select('deal_uuid').first();
-      await require('../projectService').linkDealToProject(dealRow && dealRow.deal_uuid, updates.project_id, trx);
+      await require('../projectService').linkDealToProject(dealRow && dealRow.deal_uuid, updates.project_id, trx, { id: adminId });
     }
 
     // Replace inclusions only when the caller sent an explicit list.

backend/src/services/contract/signatureAssets.js

@@ -2,6 +2,7 @@
 // module-level overview. Do not add behavior here without updating the entry re-exports.
 
 const crypto = require('crypto');
+const { getStoragePath } = require('../../config/storage');
 const fs = require('fs');
 const path = require('path');
 const logger = require('../../utils/logger');
@@ -42,7 +43,7 @@ function sha256OfFile(filePath) {
 async function persistContractPdf(contract, buffer, suffix = '') {
   if (!contract.contract_number) return { filePath: null, sha256: null };
   const year = (contract.issue_date ? new Date(contract.issue_date) : new Date()).getFullYear();
-  const root = path.join(process.cwd(), 'storage', 'business-docs', 'contract', String(year));
+  const root = path.join(getStoragePath(), 'business-docs', 'contract', String(year));
   fs.mkdirSync(root, { recursive: true });
   // Always append a millisecond timestamp to the filename so writes
   // never overwrite an earlier version on disk. Forensic preservation.
@@ -92,8 +93,7 @@ async function persistSignatureImage(contract, role, dataUrl) {
   }
   const ext = match[1] === 'jpeg' ? 'jpg' : 'png';
   const root = path.join(
-    process.cwd(),
-    'storage',
+    getStoragePath(),
     'business-docs',
     'contract',
     'signatures',
@@ -194,7 +194,7 @@ async function persistAuditCertificate(contract) {
   try {
     const { buffer } = await pdfStampService.renderAuditCertificate(ctx);
     const year = (contract.issue_date ? new Date(contract.issue_date) : new Date()).getFullYear();
-    const root = path.join(process.cwd(), 'storage', 'business-docs', 'contract', String(year));
+    const root = path.join(getStoragePath(), 'business-docs', 'contract', String(year));
     fs.mkdirSync(root, { recursive: true });
     const stamp = new Date().toISOString().replace(/[:.]/g, '-');
     const filePath = path.join(root, `${contract.contract_number}_audit_${stamp}.pdf`);

backend/src/services/downloadZipService.js

@@ -112,8 +112,15 @@ class DownloadZipService {
       const event = await db('events').where({ id: eventId }).first();
       if (!event) return { success: false, error: 'Event not found' };
 
+      // The prebuilt zip is served to ordinary gallery guests (the
+      // download-all fast path), so it must exclude hidden/client-only
+      // photos — NULL visibility counts as visible (pre-migration rows).
+      // PIN-clients bypass this cache and stream a full archive instead.
       const photos = await db('photos')
         .where({ event_id: eventId })
+        .where(function () {
+          this.where('visibility', 'visible').orWhereNull('visibility');
+        })
         .select('*')
         .orderBy('type', 'asc')
         .orderBy('uploaded_at', 'desc');

backend/src/services/emailIntakeService.js

@@ -20,6 +20,31 @@ const sanitizeHtml = require('sanitize-html');
 const { isUniqueViolation } = require('../utils/dbErrors');
 
 const ALLOWED_MIME = ['application/pdf', 'image/jpeg', 'image/png'];
+
+// Resource caps for inbound mail (GHSA-2qf9). Anyone who can email the
+// operator's mailbox reaches this code path unauthenticated, and nothing here
+// used to bound message size, attachment count or attachment bytes. Defaults
+// are generous for real supplier invoices; all three are env-overridable.
+const numFromEnv = (name, fallback) => {
+  const n = Number(process.env[name]);
+  return Number.isFinite(n) && n > 0 ? n : fallback;
+};
+const MAX_MESSAGE_BYTES = numFromEnv('EMAIL_INTAKE_MAX_MESSAGE_BYTES', 25 * 1024 * 1024);
+// received_emails.message_id is varchar(512) WITH a UNIQUE constraint. A sender
+// can legally emit a Message-ID longer than that; the insert then throws, the
+// catch path stores a synthetic err-<uid>-<now> key that can never match the
+// dedup pass, and every poll re-downloads and re-parses the same message
+// forever. Collapse anything overlong to a stable hash so the key always fits
+// and always reproduces (GHSA-2qf9).
+const MESSAGE_ID_MAX = 512;
+const boundedMessageId = (raw, fallback) => {
+  const value = String(raw || fallback || '').trim() || String(fallback || '');
+  if (value.length <= MESSAGE_ID_MAX) return value;
+  return `sha256:${require('crypto').createHash('sha256').update(value).digest('hex')}`;
+};
+const MAX_ATTACHMENTS = numFromEnv('EMAIL_INTAKE_MAX_ATTACHMENTS', 25);
+const MAX_ATTACHMENT_BYTES = numFromEnv('EMAIL_INTAKE_MAX_ATTACHMENT_BYTES', 25 * 1024 * 1024);
+
 let polling = false;
 
 // Fail fast instead of hanging on a wrong host/port (e.g. IMAP pointed at an
@@ -280,8 +305,17 @@ async function pollAccountOnce(cfg, { accountKey = 'accounting', routeToExpenses
       const candidates = [];
       if (uids.length) {
         // eslint-disable-next-line no-restricted-syntax
-        for await (const m of client.fetch(uids, { uid: true, envelope: true }, { uid: true })) {
-          candidates.push({ uid: m.uid, messageId: (m.envelope && m.envelope.messageId) || `uid-${cfg.folder}-${m.uid}` });
+        // `size` rides along in the same cheap envelope pass, so an oversized
+        // message can be rejected BEFORE its source is downloaded (GHSA-2qf9).
+        for await (const m of client.fetch(uids, { uid: true, envelope: true, size: true }, { uid: true })) {
+          candidates.push({
+            uid: m.uid,
+            size: Number(m.size) || 0,
+            messageId: boundedMessageId(
+              m.envelope && m.envelope.messageId,
+              `uid-${cfg.folder}-${m.uid}`,
+            ),
+          });
         }
       }
 
@@ -300,10 +334,30 @@ async function pollAccountOnce(cfg, { accountKey = 'accounting', routeToExpenses
         let claimKey = null;
         let claimed = false;
         try {
+          // Refuse oversized messages before download (GHSA-2qf9). Recorded
+          // under the REAL message id — not a synthetic err-<uid>-<now> key —
+          // so the step-3 dedup skips it on the next poll. Without that, the
+          // same huge message was re-downloaded every poll interval forever,
+          // and an OOM-kill/restart simply resumed the loop.
+          if (MAX_MESSAGE_BYTES > 0 && cand.size > MAX_MESSAGE_BYTES) {
+            logger.warn?.(`emailIntake: skipping uid ${cand.uid} — ${cand.size} bytes exceeds the ${MAX_MESSAGE_BYTES}-byte limit`);
+            await db('received_emails').insert({
+              message_id: cand.messageId,
+              account_key: accountKey,
+              status: 'error',
+              error: `Message too large (${cand.size} bytes); limit is ${MAX_MESSAGE_BYTES}`,
+              attachment_count: 0,
+              received_at: new Date(),
+              created_at: new Date(),
+            });
+            await client.messageFlagsAdd(cand.uid, ['\\Seen'], { uid: true });
+            continue;
+          }
+
           const one = await client.fetchOne(String(cand.uid), { source: true }, { uid: true });
           if (!one || !one.source) continue;
           const parsed = await simpleParser(one.source);
-          messageId = parsed.messageId || cand.messageId;
+          messageId = boundedMessageId(parsed.messageId, cand.messageId);
           // Claim key: a no-Message-ID mail still needs a non-null, per-message
           // key so two pollers converge — fall back to the mailbox uid.
           claimKey = messageId || `nomsgid-${cand.uid}`;
@@ -347,7 +401,25 @@ async function pollAccountOnce(cfg, { accountKey = 'accounting', routeToExpenses
           let count = 0;
           const attErrors = [];
           if (routeToExpenses) {
-            const atts = (parsed.attachments || []).filter((a) => ALLOWED_MIME.includes(a.contentType));
+            const allowed = (parsed.attachments || []).filter((a) => ALLOWED_MIME.includes(a.contentType));
+            // Cap attachment count AND cumulative bytes (GHSA-2qf9) — a single
+            // in-limit message can still carry hundreds of attachments, each
+            // written to disk by saveAttachment().
+            const atts = [];
+            let attBytes = 0;
+            for (const att of allowed) {
+              if (atts.length >= MAX_ATTACHMENTS) {
+                attErrors.push(`Attachment limit reached (${MAX_ATTACHMENTS}); remaining attachments skipped`);
+                break;
+              }
+              const size = att.content ? att.content.length : 0;
+              if (attBytes + size > MAX_ATTACHMENT_BYTES) {
+                attErrors.push(`Cumulative attachment size limit reached (${MAX_ATTACHMENT_BYTES} bytes); remaining attachments skipped`);
+                break;
+              }
+              attBytes += size;
+              atts.push(att);
+            }
             for (const att of atts) {
               try {
                 const filePath = await saveAttachment(att);