WPS Telegram Chat <= 4.6.0 - Authenticated (Subscriber+) Unauthorized Access to Telegram Bot API

The WPS Telegram Chat plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the 'Wps_Telegram_Chat_Admin::checkСonnection' function in versions up to, and including, 4.6.0. This makes it possible for authenticated attackers, with subscriber-level access and above, to have full access to the Telegram Bot API endpoint and communicate with it.