Synacor Zimbra Collaboration Suite Collaboration before 8.8.11 has XSS in the AJAX and html web clients.
packetstormsecurity.com/files/151472/Zimbra-Collaboration-Cross-Site-Scripting.html
seclists.org/fulldisclosure/2019/Feb/3
www.openwall.com/lists/oss-security/2019/01/30/1
www.securityfocus.com/bid/106787
bugzilla.zimbra.com/show_bug.cgi?id=109017
bugzilla.zimbra.com/show_bug.cgi?id=109018
wiki.zimbra.com/wiki/Zimbra_Security_Advisories