Quick answers
- Is CVE-2026-126810 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-126810 being exploited in the wild.
- How severe is CVE-2026-126810?
- Medium severity, with a CVSS score of 5.4, published 11 November 2026.
- Which products and versions are affected?
- WWBN AVideo 29.1.0 through 29.7.1.
- Is there a fix for CVE-2026-126810?
- 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-2026-126810 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-126810?
- 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 channel About field (feed/index.php) where the feedHtmlDescription() filter fails to sanitize unquoted event-handler payloads. The payload persists and executes in the browser when the RSS feed is rendered via rss-style.xsl with disable-output-escaping enabled, affecting any visitor including administrators. A registered user can trigger this by editing their own channel's About text.
Affected products
- WWBN AVideo 29.1.0 through 29.7.1
Timeline
- 2026-11-11: disclosed