source: https://www.securityfocus.com/bid/55174/info
The Rich WidgetPlugin for WordPress is prone to an arbitrary file-upload vulnerability.
An attacker can exploit this issue 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.
http://www.example.com/wp-content/plugins/rich-widget/fckeditor/editor/filemanager/connectors/test.html