Paytm Payment Gateway <= 2.7.0 is vulnerable to Server Side Request Forgery (SSRF) vulnerability

The Paytm Payment Gateway plugin for WordPress is vulnerable to Server-Side Request Forgery in versions up to, and including, 2.7.0. This is due to Server-Side Request Forgery. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.