The WebMail components (Crystal pronto and pronto4) in CommuniGate Pro before 6.2.1 have stored XSS vulnerabilities via (1) the location or details field of a Google Calendar invitation (2) a crafted Outlook.com calendar (aka Hotmail Calendar) invitation (3) e-mail granting access to a directory that has JavaScript in its name (4) JavaScript in a note name (5) JavaScript in a task name or (6) HTML e-mail that is mishandled in the Inbox component.