Cross-site scripting (XSS) vulnerability in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "OWA XSS Vulnerability," a different vulnerability than CVE-2014-6326.
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-075