Visual Form Builder <= 2.8.2 - Cross-Site Request Forgery to SQL Injection

The Visual Form Builder plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.8.2. This is due to missing or incorrect nonce validation on the current_filter_action function. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database via forged request granted they can trick a site administrator into performing an action such as clicking on a link.