Cross-site scripting in AVideo - CVE-2026-41061
Published: November 11, 2026
Vulnerability identifier: #VU165909
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-41061
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary JavaScript in other users' browsers through stored cross-site scripting.
The vulnerability exists due to an unanchored duration-validation regex and missing HTML escaping in AVideo's video duration handling when processing and rendering encoder-supplied durations. A remote user can use upload permissions and a video's identifier hash to submit duration=00:00:01</time><img src=x onerror=alert(1)><time> to objects/aVideoEncoderReceiveImage.json.php to execute JavaScript when victims view the stored duration on trending pages, playlists, or gallery thumbnails.
Affected software
AVideo
How to mitigate CVE-2026-41061
Install security update from vendor's website.
AVideo - update to 29.1.0