GeekyBot <= 1.2.2 - Missing Authorization to Unauthenticated Arbitrary Plugin Installation via 'geekybot_frontendajax' AJAX Action

The Geeky Bot plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 1.2.2. This is due to a nopriv AJAX route allowing attacker-controlled model/function dispatch and reaching a plugin installer helper that downloads and unzips attacker-supplied ZIP files into wp-content/plugins/. This makes it possible for unauthenticated attackers to perform arbitrary plugin installation and achieve remote code execution.