My Calendar <= 3.3.24.1 - Cross-Site Request Forgery

The My Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.24.1. This is due to missing or incorrect nonce validation on several functions handling the deletion of events and locations. This makes it possible for unauthenticated attackers to remove events or locations, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.