CVE-2012-3578
Unrestricted file upload vulnerability in html/Upload.php in the FCChat Widget plugin 2.2.13.1 and earlier for WordPress allows remote attackers to execute arbitrary code by uploading a file with a file with an executable extension followed by a safe extension, then accessing it via a direct request to the file in html/images.
Date published : 2012-06-16
http://www.securityfocus.com/bid/53855
http://packetstormsecurity.org/files/113323/WordPress-FCChat-Widget-2.x-Shell-Upload.html