Cross-site scripting (XSS) vulnerability in Outlook Web Access in Microsoft Exchange Server 2010 SP2 and SP3 and 2013 Cumulative Update 2 and 3 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "OWA XSS Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-105