source: http://www.securityfocus.com/bid/15863/info
  
QuickPayPro is prone to multiple input validation vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input.
  
Successful exploitation of these vulnerabilities could result in a compromise of the application, disclosure or modification of data, the theft of cookie-based authentication credentials. They may also permit an attacker to exploit vulnerabilities in the underlying database implementation as well as other attacks.

http://www.example.com/communication/subscribers.tracking.edit.php?subtrackingid=[SQL]