The remote host is vulnerable to a Script Injection attack.
The remote host is running CopperMine Gallery, a set of PHP scripts to handle galleries of pictures. There is an injection flaw in this version of Coppermine Gallery. An attacker exploiting this flaw would only need to be able to send standard HTTP requests to the server. Successful exploitation would result in the attacker running arbitrary code with the permissions of the web server.
Upgrade to version 1.4.4 or higher.