Cross-site scripting (XSS) vulnerability in the web applications in Microsoft Exchange Server 2013 Cumulative Update 8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka "Exchange HTML Injection Vulnerability."
Improper Neutralization of Input During Web Page Generation The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.