File Manager Pro – Filester < 1.8.7 - Missing Authorization to Authenticated (Subscriber+) Filebird Plugin Installation

Description

The File Manager Pro – Filester plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'ajax_install_plugin' function in all versions up to, and including, 1.8.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install the Filebird plugin.