CVE-2009-4447: Jax Guestbook 3.5.0 allows remote attackers to bypass authentication and modify administrator settings via a direct requ

Jax Guestbook version 3.5.0 has a vulnerability that allows attackers to skip authentication (the process of verifying who you are) and change administrator settings by directly accessing the admin/guestbook.admin.php file. This is classified as a CWE-287 weakness, meaning the software's authentication mechanism is broken.