* fix(security): escape brand tokens, block tracker redirects, trim logo diagnostic (GHSA-j347, mw76, 29vm)
GHSA-j347 — buildCachedPayload sanitizes the operator's HTML and THEN runs
applyBrandTokens over the result with a plain String.replace, so any markup in
a token value reached the public origin unfiltered. 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 value could close the attribute and
inject. Token values are now HTML-escaped on substitution, mirroring
galleryOgService's escapeHtml. sanitizeBrandUrl's case-sensitive literal
'javascript:' check (which 'JavaScript:' walked straight past) is replaced by
an http/https scheme allowlist; relative logo paths are unaffected.
Writer is settings.edit (super_admin only) and the CSP blocks inline script,
so this is defence-in-depth — but sanitize-then-substitute is a real ordering
bug regardless.
GHSA-mw76 — the SSRF decline STANDS: self-hosted operators legitimately point
analytics at private addresses, so connection-time IP blocking would break real
deployments. Fixed only the narrow leak: undici strips
Authorization/Cookie/Proxy-Authorization/Host across a cross-origin redirect,
but umamiAdapter sends a CUSTOM x-umami-api-key header, which would be replayed
verbatim to the redirect target. Both adapters now use redirect: 'error'.
GHSA-29vm — the logo diagnostic echoed absolute storage roots, process.cwd()
and absolute candidate paths. It now reports candidates relative to
<STORAGE>/<CWD_STORAGE>, which answers the same 'which candidate existed'
question. It also still advertised the raw-absolute candidate that GHSA-c7x5
removed from resolveLogoFile, so it was misreporting what the resolver tries —
aligned with the real candidate list.
publicSiteService.test.js expectation updated: an '&' in a company name is now
emitted as '&'. Renders identically; the raw payload string differs.
* fix(security): codex round 2 — stop the remaining logo-path disclosure, mirror the resolver (GHSA-29vm)
- sources[].value was still echoed verbatim. branding_logo_path is stored
ABSOLUTE by multer, so relativising only resolvedTo and the candidate paths
left the filesystem layout going out anyway. It is now relativised too.
- Round 1 dropped the raw-absolute candidate on the grounds that GHSA-c7x5
removed it from resolveLogoFile — but the c7x5 follow-up RE-ADDED it (kept,
subject to the containment filter, so a legitimate multer path still
resolves). The diagnostic therefore reported every candidate as missing for
a contained absolute logo while resolvedTo named the file. It now mirrors the
resolver, containment filter included.
One deliberate cosmetic divergence, commented in place: for an absolute value
the resolver also tries path.join(root, value-minus-leading-slash), which can
never exist and would re-embed the absolute path this endpoint must stop
echoing. Omitted; every candidate that can actually match is still shown.
* fix(security): codex round 3 — mirror the resolver for root-relative logo paths (GHSA-29vm)
The logo diagnostic skipped the `<STORAGE>/<value>` candidates whenever
path.isAbsolute(value) was true. That test cannot distinguish a multer disk
path from a root-relative URL such as `/custom/logo.png`, and for the URL form
resolveLogoFile.generateCandidates() does try `<STORAGE>/custom/logo.png` and
can resolve it — so the endpoint reported "no source candidate exists" about a
logo that renders fine, and collapsed the configured value to its basename.
The stripped joins are now built unconditionally, exactly as the resolver does.
Disclosure stays closed: every candidate still passes the containment filter and
redact() rewrites survivors to `<STORAGE>/…`, never an absolute host path.
Claude-Session: https://claude.ai/code/session_01F211U4dDbEj4zXiyKbi9me
(cherry picked from commit 093480a753ff3d4b6ed48dd9f1108f975c8e0d47)
* fix(security): gate the logo stripped-joins on containment, not isAbsolute (GHSA-29vm)
The previous commit dropped the isAbsolute() gate entirely and regressed
logoDiagnostic's own disclosure assertion: for a genuine multer disk path,
path.join(root, value-minus-leading-slash) yields
`<STORAGE>/tmp/…/storage/custom/logo.png`, and redact() only rewrites the
LEADING root — so the inner absolute path went straight back into the payload.
The right discriminator is not "is this absolute" (which cannot separate a disk
path from a root-relative URL) but "does the value already resolve inside a
storage root". If it does, it is a real disk path, the raw candidate already
covers it, and the stripped join is the double-prefixed junk that can never
exist. If it does not — the `/custom/logo.png` URL form — the stripped join is
exactly what resolveLogoFile resolves, and is shown.
Covered by a new case asserting both halves: the candidate appears for the URL
form, and the payload still contains neither the storage root nor cwd.
Claude-Session: https://claude.ai/code/session_01F211U4dDbEj4zXiyKbi9me
(cherry picked from commit c6b95d3cd1cb28e5c2828d29d4d63fadad981dcf)
---------
Co-authored-by: Paul Nothaft <paul@MacStudio-von-Paul.local>
Paul Nothaft
7f27e6771f