Cross-site scripting (XSS) vulnerability in index.php in miniBB 2.2, and possibly earlier, when register_globals is enabled, allows remote attackers to inject arbitrary web script or HTML via the glang[] parameter in a registernew action.
Improper Neutralization of Input During Web Page Generation 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.