4Images 1.7.x SQL Injection

`-----------Summary-----------  
eVuln ID: 200  
Software: "Powered by 4images"  
Vendor: PHP Web Scripts  
Version: 4images 1.7.X  
dork: "Powered by 4images"  
Critical Level: medium  
Type: SQL injection and Path Disclosure  
Status: Unpatched. No reply from developer(s)  
PoC: Available  
Solution: Not available  
Discovered by: ahmed atif ( http://7ria.com/ )  
site: http://www.7ria.com/  
--------Description--------  
bug exists in categories.php  
script.  
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/xxx/html/hootersflorida/includes/db_mysql.php on line 116  
--------PoC/Exploit--------  
PoC code is available at:  
http://www.site.com/4images/categories.php?cat_id=1&page=-2999+%27%29+union/  
---------Solution----------  
Not available  
----------Credit-----------  
Vulnerability discovered by Ahmed Atif  
`