Yes, it is vulnerable. The user inputs as cat_id is not quoted when retrieving the category text. You can test the vulerability by: cat_id=2%20and%201=1 cat_id=2%20and%201=2 >Patrick Morris wrote: > >Do you have any evidence that there is a real vulerability here, or are you basing your assumption on the error messages? If it's strictly based on the error messages, this is more of a PHP thing than one with the shopping cart, and the information disclosure would be fixed by properly configuring PHP not to display those errors.