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CVE-2026-116139VulnerabilityPublished 10/25/2026

CVE-2026-116139: WWBN AVideo · Cross-site Scripting

Affects WWBN AVideoSource CVE Database V5

0

Not known to be exploited · CVSS 5.1 Medium.

Data as of 10/25/2026, 17:13:39 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
WWBNAVideoAffected
  • >=26.0 <=29.3.0
Fixed in–
GitHubwwbn/AVideopkg:github/wwbn/AVideoOther threatsAffected
  • >=26.0 <=29.3.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until an official fix is available, restrict commenting privileges to trusted users and consider additional input sanitization or filtering on the server side to block event-handler attributes in user-generated content.

Description

WWBN AVideo versions 26.0 through 29.3.0 contain a stored cross-site scripting (XSS) vulnerability. Authenticated commenters can inject JavaScript code via specially crafted comments that include an img tag with an onerror event handler. This occurs because the markDownToHTML() function preserves event-handler attributes in leading HTML blocks, bypassing the inline sanitizer. The injected script executes in the browsers of viewers under the application's origin.

Impact

This vulnerability allows authenticated users to execute arbitrary JavaScript in the browsers of other users viewing the affected comments. This can lead to session hijacking, unauthorized actions performed on behalf of users, or other client-side attacks within the scope of the application origin. The CVSS 4.0 base score is 5.1, indicating a medium severity impact with low to limited confidentiality and integrity impact and low availability impact.

References

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