source: http://www.securityfocus.com/bid/20215/info
 
CubeCart is prone to multiple input-validation vulnerabilities, including information-disclosure, cross-site scripting, and SQL-injection issues, because the application fails to properly sanitize user-supplied input. 
 
A successful exploit of these vulnerabilities could allow an attacker to compromise the application, access or modify data, steal cookie-based authentication credentials, or even exploit vulnerabilities in the underlying database implementation. Other attacks are also possible.

http://www.example.com/view_order.php?order_id='%20union%20select%201,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,2
9,30/*