What’s Vulnerable › Vulnerabilities

CVE-2026-41061: WWBN AVideo Vulnerable to stored XSS via Unanchored Duration Regex in Video Encoder Receiver

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-21 · updated 2026-10-26
• Weakness: CWE-79

Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, the `isValidDuration()` regex at `objects/video.php:918` uses `/^[0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2}/` without a `$` end anchor, allowing arbitrary HTML/JavaScript to be appended after a valid duration prefix. The crafted duration is stored in the database and rendered without HTML escaping via `echo Video::getCleanDuration()` on trending pages, playlist pages, and video gallery thumbnails, resulting in stored cross-site scripting. Commit bcba324644df8b4ed1f891462455f1cd26822a45 contains a fix.

Affected products

• WWBN AVideo: through 29.0

References

• https://github.com/WWBN/AVideo/commit/bcba324644df8b4ed1f891462455f1cd26822a45
• https://github.com/WWBN/AVideo/security/advisories/GHSA-8pv3-29pp-pf8f
• https://github.com/WWBN/AVideo/security/advisories/GHSA-8pv3-29pp-pf8f

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