Multiple cross-site scripting (XSS) vulnerabilities in phpArcadeScript 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) the gamename parameter in tellafriend.php, (2) the login_status parameter in loginbox.php, (3) the submissionstatus parameter in index.php, the (4) cell_title_background_color and (5) browse_cat_name parameters in browse.php, the (6) gamefile parameter in displaygame.php, and (7) possibly other parameters in unspecified PHP scripts.