Multiple cross-site scripting (XSS) vulnerabilities in forms/messages.php in the WP-Contact (wp-contact-sidebar-widget) plugin 1.0 and earlier for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) edit, (2) order_direction, (3) limit_start, (4) id, or (5) order parameter.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.