CVE-2025-21624 – ClipBucket PHP File Upload Web Shell Trick Vulnerability

CVE ID : CVE-2025-21624

Published : Jan. 7, 2025, 4:15 p.m. | 3 hours, 29 minutes ago

Description : ClipBucket V5 provides open source video hosting with PHP. Prior to 5.5.1 – 239, a file upload vulnerability exists in the Manage Playlist functionality of the application, specifically surrounding the uploading of playlist cover images. Without proper checks, an attacker can upload a PHP script file instead of an image file, thus allowing a webshell or other malicious files to be stored and executed on the server. This attack vector exists in both the admin area and low-level user area. This vulnerability is fixed in 5.5.1 – 239.

Severity: 9.8 | CRITICAL

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