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.
CVE ID: CVE-2025-21624
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.8
Vendor: MacWarrior
Product: clipbucket-v5
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.49% (scored less or equal to compared to others)
EPSS Date: 2025-02-05 (when was this score calculated)