Wordpress File Upload < 4.24.1 - Cross-Site Request Forgery

Description

The WordPress File Upload plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.24.0. This is due to missing or incorrect nonce validation on the wfu_ajax_action_save_shortcode function. This makes it possible for unauthenticated attackers to save shortcodes via a forged request granted they can trick a site administrator or editor into performing an action such as clicking on a link.