source: http://www.securityfocus.com/bid/57055/info

MotoCMS is prone to a file-disclosure and an arbitrary file-upload vulnerability.

An attacker can exploit these issues to upload a file and view local files in the context of the web server process, which may aid in further attacks.

MotoCMS 1.3.3 and prior versions are vulnerable. 

http://www.example.com/admin/data/users.xml