Multiple unrestricted file upload vulnerabilities in MTCMS 3.2 allow remote attackers to upload and execute files via (1) an avatar upload in an add_down action, or (2) an add_link action.
http://www.vupen.com/english/advisories/2007/0755
http://www.securityfocus.com/bid/22690
http://www.securityfocus.com/archive/1/461330/100/100/threaded