Orderable <= 1.20.0 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation

The Orderable – WordPress Restaurant Online Ordering System and Food Ordering Plugin plugin for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check on the 'install_plugin' function in all versions up to, and including, 1.20.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install arbitrary plugins, which can lead to Remote Code Execution.