Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Cross-site scripting (XSS) vulnerability in Microsoft SharePoint Foundation 2010 SP2, SharePoint Server 2010 SP2, SharePoint Foundation 2013 Gold and SP1, and SharePoint Server 2013 Gold and SP1 allows remote authenticated users to inject arbitrary web script or HTML via a crafted request, aka "Microsoft SharePoint XSS Vulnerability."
CWE-79 - Cross Site Scripting
Cross-Site Scripting, commonly referred to as XSS, is the most dominant class of vulnerabilities. It allows an attacker to inject malicious code into a pregnable web application and victimize its users. The exploitation of such a weakness can cause severe issues such as account takeover, and sensitive data exfiltration. Because of the prevalence of XSS vulnerabilities and their high rate of exploitation, it has remained in the OWASP top 10 vulnerabilities for years.