Fatal Error Notify <= 1.5.2 - Cross-Site Request Forgery to Test Error Email Sending

The Fatal Error Notify plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.2. This is due to missing or incorrect nonce validation on the test_error function. This makes it possible for unauthenticated attackers to send test error emails to the administrator email address via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.