Vulnerability Description
WWBN AVideo 26.0 through 29.3.0 contains a stored cross-site scripting vulnerability that allows authenticated commenters to inject JavaScript because markDownToHTML() preserves event-handler attributes in leading HTML blocks. Attackers can post a comment starting with an img tag carrying an onerror handler, which bypasses the inline sanitizer and executes in viewers' browsers under the application origin.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/commit/f13587c59346b4bf0f449273021d29b869594559
- https://github.com/WWBN/AVideo/security/advisories/GHSA-cx46-26xc-2w7f
- https://www.vulncheck.com/advisories/wwbn-avideo-26.0-through-29.3.0-stored-xss-
FAQ
What is CVE-2026-116139?
CVE-2026-116139 is a vulnerability with a CVSS score of 5.4 (MEDIUM). WWBN AVideo 26.0 through 29.3.0 contains a stored cross-site scripting vulnerability that allows authenticated commenters to inject JavaScript because markDownToHTML() preserves event-handler attribut...
How severe is CVE-2026-116139?
CVE-2026-116139 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116139?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.