Multiple cross-site scripting (XSS) vulnerabilities in Spymac Web OS 4.0 allow remote attackers to inject arbitrary web script or HTML via (a) the blogs module, including the (1) curr parameter in index.php, (2) inspire, (3) system, or (4) title parameter in blog_newentry.php, (5) entry parameter in blog_newentry_comment.php, (6) entry parameter in blog_edit_entry.php, or (7) caldate parameter in blog.php; and (b) the notes module, including the (1) forwardid parameter in a noteform action; (2) del_folder parameter in a delete_folder action; (3) isread, (4) dateorder, (5) subjectorder, (6) curr, (7) fromorder, or (8) action parameters; (9) ppp or (10) totalreplies parameter in an Inbox action; (11) totalnotes parameter; or (12) touserid parameter in a noteform action.