AnyComment < 0.2.18 - Comment Rating Increase/Decrease via Race Condition

The AnyComment WordPress plugin before 0.2.18 is affected by a race condition when liking/disliking a comment/reply, which could allow any authenticated user to quickly raise their rating or lower the rating of other users

AnyComment < 0.2.18 - Arbitrary HyperComments Import/Revert via CSRF

The AnyComment WordPress plugin before 0.2.18 does not have CSRF checks in the Import and Revert HyperComments features, allowing attackers to make logged in admin perform such actions via a CSRF attack

AnyComment < 0.3.5 - Open Redirect

The AnyComment WordPress plugin before 0.3.5 has an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first, leading to an Open Redirect issue, which according to the vendor, is a feature.

The anycomment plugin before 0.0.33 for WordPress has XSS.