Bulk Comment Remove <= 2 - Cross-Site Request Forgery via brc_admin()

Description

The Bulk Comment Remove plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2. This is due to missing or incorrect nonce validation on the brc_admin() function. This makes it possible for unauthenticated attackers to delete comments in bulk via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.