source: https://www.securityfocus.com/bid/18671/info

cPanel is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. 

An attacker may leverage this issue to have arbitrary script code execute in the browser of an unsuspecting user in the context of the affected site. This may help attackers steal cookie-based authentication credentials and launch other attacks.

Successful exploitation may allow an attacker to gain unauthorized access to a cPanel user's account.

http://www.example.com:2082/frontend/x2/files/select.html?dir=/&file=Moved%20<a%20href='?'%20onMouseover='alert(document.cookie)'>Here%20<!--