source: https://www.securityfocus.com/bid/57465/info
Classified Ultra is prone to an SQL-injection vulnerability and a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied data.
Exploiting these vulnerabilities could allow an attacker to steal cookie-based authentication credentials, compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.
SQL-injection:
http://www.example.com/demos/classifiedultra/subclass.php?c=16'[SQLi HERE]
Cross-site scripting:
http://www.example.com/demos/classifiedultra/subclass.php?c=6&cname=Credit%20Cards[XSS HERE]