#VU34057 Improper access control in The Official Facebook Chat Plugin
Published: August 5, 2020
The Official Facebook Chat Plugin
Facebook Inc.
Description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the "wp_ajax_update_options" AJAX action. A remote authenticated attacker can send a request to update the options and hook-up their own Facebook Messenger account.