Jax Guestbook 3.50 Page Parameter Cross-Site Scripting Vulnerability

                                                source: http://www.securityfocus.com/bid/17560/info

Jax Guestbook is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. 

An attacker may leverage this issue to have arbitrary script code executed in the browser of an unsuspecting user in the context of the affected site. This may help the attacker steal cookie-based authentication credentials and launch other attacks.

Version 3.50 is vulnerable to this issue; other versions may also be affected.

http://www.example.com/jax_guestbook.php?page=[XSS]&language=english
http://www.example.com/guestbook.admin.php?action=list&guestbook_id=0&language=german&gmt_ofs=0&page=[XSS]