12 Step Meeting List < 3.14.25 - Authenticated (Contributor+) Server-Side Request Forgery

Description The 12 Step Meeting List plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.14.24 via the tsml_add_data_source parameter. 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.