CVEvulnerability
CVE-2026-113355
4.8 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-20
- Last modified
- 2026-10-20
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 4.8 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 4.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
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.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/chatwoot/chatwoot/blob/88ffa329eb6e18ae06b608d8b4bab96c0e1b8f44/lib/custom_markdown_renderer.rb#L75-L84 github.com
- https://github.com/chatwoot/chatwoot/commit/2192af80f405c70e3021191ff8b3f7e539c35e9d github.com
- https://github.com/chatwoot/chatwoot/pull/14140 github.com
- https://github.com/chatwoot/chatwoot/releases/tag/v4.14.0 github.com
- https://www.vulncheck.com/advisories/chatwoot-before-4.14.0-stored-xss-via-help-center-video-embed-links www.vulncheck.com