Cross-site request forgery in AVideo - CVE-2026-40929
Published: November 11, 2026
Vulnerability identifier: #VU165906
CSH Severity: Medium
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40929
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to delete comments en masse using an authenticated victim's permissions.
The vulnerability exists due to missing cross-site request forgery protection in AVideo's objects/commentDelete.json.php endpoint when handling comment deletion requests with cross-site session cookies. A remote attacker can lure a logged-in moderator, video owner, or comment author to a malicious page that submits GET or POST requests containing comment identifiers to delete comments within the victim's authority.
Affected software
AVideo
How to mitigate CVE-2026-40929
Install security update from vendor's website.
AVideo - update to 29.1.0