Cross-site scripting (XSS) vulnerability in _layouts/help.aspx in Microsoft SharePoint Server 2007 12.0.0.6421 and possibly earlier, and SharePoint Services 3.0 SP1 and SP2, versions, allows remote attackers to inject arbitrary web script or HTML via the cid0 parameter.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7468
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-039
http://www.us-cert.gov/cas/techalerts/TA10-159B.html
http://www.securityfocus.com/archive/1/511021/100/0/threaded