Remote Content Shortcode <= 1.5 - Authenticated (Contributor+) Server-Side Request Forgery

The Remote Content Shortcode plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.5 via the remote_content shortcode. This makes it possible for authenticated attackers, with contributor-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.