Cross-site scripting (XSS) vulnerability in EditForm.aspx in Microsoft Office SharePoint Server 2010 and SharePoint Foundation 2010 allows remote attackers to inject arbitrary web script or HTML via a post, aka "Editform Script Injection Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12788
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-074