WP Custom Cursors <= 3.0 is vulnerable to Arbitrary Cursor Deletion via Cross-Site Request Forgery (CSRF) vulnerability

The WP Custom Cursors plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.0. This is due to missing or incorrect nonce validation in the ~/wp-custom-cursors-add-new.php file. This makes it possible for unauthenticated attackers to manipulate cursors, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.