An issue was discovered in the update function in the wpForo Forum plugin before 1.5.2 for WordPress. A registered forum is able to escalate privilege to the forum administrator without any form of user interaction.
wpforo_get_request_uri in wpf-includes/functions.php in the wpForo Forum plugin before 1.4.12 for WordPress allows Unauthenticated Reflected Cross-Site Scripting (XSS) via the URI.