Mediawiki EmbedVideo Extension has stored XSS via malformed src url with $wgEmbedVideoRequireConsent disabled
High-risk advisory
CVE-2026-57440
Summary
Mediawiki EmbedVideo Extension has stored XSS via malformed src url with $wgEmbedVideoRequireConsent disabled
Why it matters
GitHub has published a reviewed security advisory for starcitizenwiki/embedvideo. Prioritize it with other application dependency updates, especially because EPSS places it in the 15% percentile.
Operator check
Check whether starcitizenwiki/embedvideo is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.3%; percentile: 15%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.