Make Builder <= 1.1.10 - Authenticated (Subscriber+) Server-Side Request Forgery via make_builder_ajax_subscribe Function

The Your Friendly Drag and Drop Page Builder — Make Builder plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.1.10 via the make_builder_ajax_subscribe() function. 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 and can be used to query and modify information from internal services.