Multiple cross-site scripting (XSS) vulnerabilities in Merak Webmail Server 5.2.7 allow remote attackers to inject arbitrary web script or HTML via the (1) category, (2) cserver, (3) ext, (4) global, (5) showgroups, (6) or showlite parameters to address.html, or the (7) spage or (8) autoresponder parameters to settings.html, the (9) folder parameter to readmail.html, or the (10) attachmentpage_text_error parameter to attachment.html, (11) folder, (12) ct, or (13) cv parameters to calendar.html, (14) an <img> tag, or (15) the subject of an e-mail message.