Etherpad has stored XSS in HTML export via unescaped attribute-pool values
High-risk advisory
CVE-2026-55090
Summary
Etherpad has stored XSS in HTML export via unescaped attribute-pool values
Why it matters
GitHub has published a reviewed security advisory for ep_etherpad-lite. Prioritize it with other application dependency updates.
Operator check
Check whether ep_etherpad-lite is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.7.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.