The RapidLoad Power-Up for Autoptimize plugin for WordPress is vulnerable to unauthorized plugin settings update due to a missing capability check on the ucss_connect function in versions up to, and including, 1.7.1. This makes it possible for authenticated attackers with subscriber-level access to connect a new license key to the site.
https://www.wordfence.com/threat-intel/vulnerabilities/id/eba48c51-87d9-4e7e-b4c1-0205cd96d033