source: https://www.securityfocus.com/bid/47371/info
Agahi Advertisement CMS 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 could allow an attacker to compromise the application, access or modify data, or exploit vulnerabilities in the underlying database.
Agahi Advertisement CMS 4.0 is vulnerable; other versions may also be affected.
http:/www.example.com/view_ad.php?id=-523+union+select+1,2,3,version%28%29,5,6,7,8,9,10,11,12,13,14,15,16,17,18--