Access violation vulnerability in Matix Popup Builder 1.0.0

A plugin for WordPress called Matix Popup Builder has a security issue that could allow someone to change important information without permission. This can lead to a situation where someone gains more privileges than they should have. This vulnerability exists in all versions of the plugin, including the most recent one. Attackers who are not logged in can use this to change certain settings on a WordPress site. They could even make themselves an administrator and enable user registration, giving them full control over the site.