CVE-2026-113355: medium-severity vulnerability in chatwoot
Chatwoot before 4.14.0 Stored XSS via Help Center Video Embed Links
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.2%
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.
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
Affected products
chatwoot · chatwootRelated CVEs — chatwoot
In the same product, most dangerous first.
CVE-2026-63765HIGHChatwoot < 4.16.0 Unauthenticated ActiveStorage Direct Upload Arbitrary Blob CreationEPSS 0.7%CVE-2025-21628CRITICALChatwoot has a Blind SQL-injection in Conversation and Contacts filtersEPSS 0.7%CVE-2026-72719MEDIUMChatwoot: Cross-Account Resource Transfer via `account_id` ParameterEPSS 0.6%CVE-2026-44707MEDIUMChatwoot: Pre-Account Takeover via OAuth on Unconfirmed AccountsEPSS 0.3%CVE-2026-115725LOWChatwoot before 4.17.0 Cross-Account Authorization Bypass via source_idEPSS 0.2%CVE-2026-44706HIGHChatwoot: SQL Injection in Conversation/Contact Filter API via Custom Attribute ValuesEPSS 0.2%
References
https://github.com/chatwoot/chatwoot/blob/88ffa329eb6e18ae06b608d8b4bab96c0e1b8f44/lib/custom_markdown_renderer.rb#L75-L84https://github.com/chatwoot/chatwoot/commit/2192af80f405c70e3021191ff8b3f7e539c35e9dhttps://github.com/chatwoot/chatwoot/pull/14140https://github.com/chatwoot/chatwoot/releases/tag/v4.14.0https://www.vulncheck.com/advisories/chatwoot-before-4.14.0-stored-xss-via-help-center-video-embed-links