{"id":"CVE-2026-113355","published":"2026-10-20T11:17:19.997","lastModified":"2026-10-20T20:06:37.150","description":"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.","cvssScore":4.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/chatwoot/chatwoot/blob/88ffa329eb6e18ae06b608d8b4bab96c0e1b8f44/lib/custom_markdown_renderer.rb#L75-L84","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/commit/2192af80f405c70e3021191ff8b3f7e539c35e9d","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/pull/14140","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/releases/tag/v4.14.0","tags":[]},{"url":"https://www.vulncheck.com/advisories/chatwoot-before-4.14.0-stored-xss-via-help-center-video-embed-links","tags":[]}],"exploitRefs":[{"url":"https://github.com/chatwoot/chatwoot/blob/88ffa329eb6e18ae06b608d8b4bab96c0e1b8f44/lib/custom_markdown_renderer.rb#L75-L84","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/commit/2192af80f405c70e3021191ff8b3f7e539c35e9d","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/pull/14140","tags":[]},{"url":"https://github.com/chatwoot/chatwoot/releases/tag/v4.14.0","tags":[]}],"hasPoc":true,"ai":null}