source: https://www.securityfocus.com/bid/24200/info

DGNews is prone to a cross-site scripting vulnerability.

Exploiting this vulnerability may allow an attacker to perform cross-site scripting attacks on unsuspecting users in the context of the affected website. As a result, the attacker may be able to steal cookie-based authentication credentials and to launch other attacks.

This issue affects DGNews 2.1; other versions may also be affected. 

http://www.example.com/footer.php?copyright=[xss]