Chatwoot before 4.14.0 contains a stored cross-site scripting vulnerability that allows account administrators to inject JavaScript by crafting video-embed links in Help Center articles. Attackers can use angle-bracket link destinations with double quotes to break out of the unescaped iframe src attribute in render_embed_from_match, executing scripts for public visitors and stealing cw_conversation widget tokens.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 6
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-20 13:25
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-20 20:06
- StatusReceived → PublishedNVD modified 2026-10-20 13:25
- StatusPublished → ReceivedNVD modified 2026-10-20 14:16
- StatusReceived → PublishedNVD modified 2026-10-20 10:41
- First seenCVSS 4.8NVD modified 2026-10-20 11:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/chatwoot/chatwoot/blob/88ffa329eb6e18ae06b608d8b4bab96c0e1b8f44/lib/custom_markdown_renderer.rb#L75-L84
- https://github.com/chatwoot/chatwoot/commit/2192af80f405c70e3021191ff8b3f7e539c35e9d
- https://github.com/chatwoot/chatwoot/pull/14140
- https://github.com/chatwoot/chatwoot/releases/tag/v4.14.0
- https://www.vulncheck.com/advisories/chatwoot-before-4.14.0-stored-xss-via-help-center-video-embed-links