The Truelysell Core plugin for WordPress is vulnerable to Arbitrary User Password Change in versions up to, and including, 1.8.6. This is due to the plugin providing user-controlled access to objects, letting a user bypass authorization and access system resources. This makes it possible for unauthenticated attackers to change user passwords and potentially take over administrator accounts. Note: This can only be exploited unauthenticated if the attacker knows which page contains the 'truelysell_edit_staff' shortcode.