phpMyAdmin 3.5.x before 3.5.3 uses JavaScript code that is obtained through an HTTP session to phpmyadmin.net without SSL, which allows man-in-the-middle attackers to conduct cross-site scripting (XSS) attacks by modifying this code.
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.