CVE-2009-4447: Jax Scripts Jax Guestbook

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

Jax Guestbook 3.5.0 allows remote attackers to bypass authentication and modify administrator settings via a direct request to admin/guestbook.admin.php.

Affected products

• Jax Scripts Jax Guestbook: version 3.5.0 only

Published 2009-12-29. Last modified 2026-06-16.