WPO365 < 40.1 - Authenticated (Subscriber+) Server-Side Request Forgery

Description

The WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 40.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application which can be used to query and modify information from internal services.