CVE-2026-85161: AVideo removePoster.php Cross-Site Request Forgery File Deletion

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-03 · updated 2026-09-08
Weakness: CWE-352

Description

AVideo through commit c91b5975d contains a cross-site request forgery vulnerability in removePoster.php that lacks forbidIfNotPost or forbidIfInvalidToken checks. Attackers can craft malicious image tags to delete authenticated victims' live poster and thumbnail files via GET requests.

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-4h63-5723-hq25
https://www.vulncheck.com/advisories/avideo-removeposter-php-cross-site-request-forgery-file-deletion

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