Multiple cross-site scripting (XSS) vulnerabilities in myPHP Guestbook 1.x through 2.0.0-r1 and before 2.0.1 RC5 allow remote attackers to inject arbitrary web script or HTML via the (1) comment, (2) email, (3) homepage, (4) id, (5) name, and (6) text parameters in (a) index.php, the (7) comment, (8) email, (9) homepage, (10) number, (11) name, and (12) text parameters in (b) admin/guestbook.php, and the (13) email, (14) homepage, (15) icq, (16) name, and (17) text parameters in (c) admin/edit.php.