The Lisfinity Core - Lisfinity Core plugin used for pebas® Lisfinity WordPress theme plugin for WordPress is vulnerable to privilege escalation via password update in all versions up to, and including, 1.4.0. This is due to the plugin not properly validating a user's identity prior to updating their password. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change arbitrary user's passwords, including those of administrators.