source: http://www.securityfocus.com/bid/13599/info

Quick.Cart is prone to a cross-site scripting vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input.

An attacker may leverage this issue to have arbitrary script code executed in the browser of an unsuspecting user. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.

This issue is reported to affect Quick.Cart version 0.3.0; other versions may also be affected. 

http://www.example.com/?p=productsList&sWord=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/index.php?p=productsList&sWord=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E