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TI-2026-76804 Aliases CVE-2026-113355GHSA-v2m9-jwmw-39xc

Stored cross-site scripting in Chatwoot Help Center video embeds

Priority LOW 21CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Chatwoot before 4.14.0 contains a stored cross-site scripting flaw in Help Center video embed links, tracked as CWE-79. The embed rendering does not escape the iframe src attribute, so an account administrator can inject JavaScript that runs for public visitors and steal widget tokens. Exploitation requires administrator access and a visitor who views the affected article.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Fixed chatwoot (chatwoot): 4.14.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
chatwootchatwootbefore 4.14.04.14.0Patch availableCNA
  • chatwoot Vendorchatwoot Affected before 4.14.0 Fixed in 4.14.0 Patch available CNA

Remediation

Upgrade Chatwoot to version 4.14.0, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA chatwoot (chatwoot) Fixed in 4.14.0

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-113355
  2. 2026-10-20 Alias added: GHSA-v2m9-jwmw-39xc
  3. 2026-10-20 CISA SSVC decision points changed

References

Patch 2

Other 2

  • TI-2026-45352 Chatwoot < 4.16.0 Unauthenticated ActiveStorage Direct Upload Arbitrary Blob Creation CVSS 4.0HIGH 8.8
  • TI-2022-03436 Improper Restriction of Excessive Authentication Attempts in chatwoot/chatwoot CVSS 3.1CRITICAL 9.8
  • TI-2023-01984 Cross-site Scripting (XSS) - DOM in chatwoot/chatwoot CVSS 3.1MEDIUM 6.1
  • TI-2025-11229 chatwoot Admin IframeLoader.vue cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2024-00591 Stored XSS in chatwoot/chatwoot CVSS 3.1MEDIUM 4.8
  • TI-2025-15587 Chatwoot has a Blind SQL-injection in Conversation and Contacts filters CVSS 3.1CRITICAL 9.1
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences