Contact Form 7 Extension For Mailchimp < 0.9.19 - Subscriber+ Server-Side Request Forgery

Description

The plugin is vulnerable to Server-Side Request Forgery in all versions up to, and including, 0.5.70. 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.