Description
WordPress Plugin Font Uploader is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input. An attacker can exploit this vulnerability to upload arbitrary PHP code and run it in the context of the Web server process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Font Uploader version 1.2.4 is vulnerable; prior versions may also be affected.
Remediation
Edit the source code to ensure that input is properly verified or disable the plugin until a fix is available
References
http://www.securityfocus.com/bid/53853/exploit
http://www.exploit-db.com/exploits/18994/
http://packetstormsecurity.com/files/113324/WordPress-Font-Uploader-1.2.4-Shell-Upload.html