Responsive Contact Form Builder & Lead Generation Plugin < 1.9.0 - Cross-Site Request Forgery

Description

The plugin is vulnerable to Cross-Site Request Forgery due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to invoke those functions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. These actions may result in form deletion, and lead signup as well as file upload.