The wpForo Forum WordPress plugin before 3.1.2 does not sanitize and escape a user profile field before outputting it inside an HTML attribute on the public participant profile page, allowing users with a subscriber-level account to inject JavaScript that executes in the browser of any visitor who views the profile, including a logged-in administrator.

The wpForo Forum WordPress plugin before 3.1.2 does not verify that an AI chat conversation belongs to the requesting user before deleting its messages, allowing users with a subscriber-level account to permanently delete the stored AI chat message history of any other user.