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CVE-2026-116139EUVD-2026-109544GHSA-CX46-26XC-2W7FGHSA-R52J-79HV-6MMF

WWBN AVideo 26.0 through 29.3.0 Stored XSS via Comment Markdown Rendering

Published
Last modified
published
Not listed in CISA KEV
Fix
Fix or patch referenced
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

WWBN AVideo, an open-source video platform, is affected by a stored cross-site scripting flaw in its comment system. An attacker with a commenter account could post a comment that runs malicious scripts in the browsers of other users who view it, potentially acting with those users' access to the site.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • WWBN AVideo

    From 26.0 · through 29.3.0

References 3

GitHub · WWBN/AVideo

vulncheck.com