CVE-2026-92584 AVideo through 29.0 Stored Cross-Site Scripting via User-Agent Header
Unauthenticated attackers can inject malicious scripts via the User-Agent header, leading to code execution in the context of video owners and administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-92584?
CVE-2026-92584 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
AVideo through 29.0 (current revision e01e41ecc) contains a stored cross-site scripting vulnerability. The unauthenticated view-counter endpoint objects/videoAddViewCount.json.php reaches VideoStatistic::save(), which writes the caller's User-Agent (via getUserAgentInfo(), which returns unrecognized agent strings verbatim) directly into the `app` column of the videos_statistics table without invoking the sanitizing setter setApp(); normalizeApp() only truncates the value to 45 characters. The video owner's and administrator's statistics page (view/videoViewsInfo.php) renders this field in a DataTables 1.12.1 column with an unescaped renderer, and DataTables assigns cell content using innerHTML, so attacker-supplied HTML is parsed and executed in the privileged user's authenticated session when the statistics page is viewed. No patched version was available at the time of the advisory.
Weakness: CWE-79
Which versions are affected by CVE-2026-92584?
How do I fix CVE-2026-92584?
No fix has been published for CVE-2026-92584 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-92584 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92584 exists.
Sources
Also known as GHSA-6rgh-c296-5j86, GHSA-ghch-wqgj-8mcj.