Unrestricted file upload vulnerability in usercp.php in MetaForum 0.513 Beta restricts file types based on the MIME type in the Content-type HTTP header, which allows remote attackers to upload and execute arbitrary scripts via an image MIME type with a filename containing an executable extension such as .php.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.128
EPSS Ranking 93.7%