City Reviewer - 'search.php' Script SQL Injection

source: https://www.securityfocus.com/bid/57049/info

City Reviewer is prone to an SQL-injection vulnerability because the application fails to properly sanitize user-supplied input before using it in an SQL query.

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

http://www.example.com/city_reviewer/search.php?category=6