Quick answers
- Is CVE-2026-105089 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-105089 being exploited in the wild.
- How severe is CVE-2026-105089?
- High severity, with a CVSS score of 8.7, published 4 October 2026.
- Which products and versions are affected?
- WWBN AVideo through 29.2.0.
- Is there a fix for CVE-2026-105089?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-105089 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-105089?
- Check whether you run WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a stored XSS in the video trailer1 field. Video::setTrailer1() in objects/video.php only validates URLs with FILTER_VALIDATE_URL, which accepts quotes and angle brackets. Four templates render the unescaped trailer1 value in onclick handlers and iframe src attributes (row_info.php, BigVideoButtons.php, BigVideo.php, channelPlaylistItems.php) without the htmlspecialchars() escaping present in two other templates. An authenticated attacker with upload permission can inject payloads like `https://evil.example/x');alert(1);//` or `https://evil.example/a">` to break out and execute JavaScript in all visitors' browsers when they view affected pages.
Affected products
- WWBN AVideo through 29.2.0
Timeline
- 2026-10-04: disclosed