Multiple cross-site scripting (XSS) vulnerabilities in Merak Mail Server 8.0.3 with Icewarp Web Mail 5.4.2 allow remote authenticated users to inject arbitrary web script or HTML via (1) the E-mail address, Note, or Public Certificate fields to address.html, (2) addressaction.html, (3) the Signature field to settings.html, or (4) the Shared calendars to calendarsettings.html.