Input validation vulnerability in Big File Uploads – Increase Maximum File Upload Size 2.1.1

The Big File Uploads plugin for WordPress contains a security issue in versions up to and including 2.1.1. This issue makes it possible for malicious attackers to trick a site administrator into clicking on a link or taking another action that could dismiss or delay important notifications. This happens because the plugin does not properly validate a security token known as a nonce on the actions function.