Frontpage Manager <= 1.3 - Cross-Site Request Forgery via admin_page

Description

The Frontpage Manager plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.3. This is due to missing or incorrect nonce validation on the 'admin_page' function. This makes it possible for unauthenticated attackers to change the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.