The ThirstyAffiliates WordPress plugin before 3.10.5 lacks authorization checks in the tainsertexternalimage action, allowing a low-privilege user (with a role as low as Subscriber) to add an image from an external URL to an affiliate link. Further the plugin lacks csrf checks, allowing an attacker to trick a logged in user to perform the action by crafting a special request.

The ThirstyAffiliates Affiliate Link Manager WordPress plugin before 3.10.5 does not have authorisation and CSRF checks when creating affiliate links, which could allow any authenticated user, such as subscriber to create arbitrary affiliate links, which could then be used to redirect users to an arbitrary website