WordPress Plugin User Avatar TimThumb Arbitrary File Upload - CVE-2011-4106

WordPress Plugin User Avatar is prone to a vulnerability that lets attackers upload arbitrary files because of a bundled vulnerable version of TimThumb. An attacker can exploit this vulnerability to upload arbitrary PHP code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation other attacks are also possible. WordPress Plugin User Avatar version 1.3.7 is vulnerable prior versions may also be affected.