Microsoft Internet Explorer 6 and 7 does not properly determine the domain or security zone of origin of web script, which allows remote attackers to bypass the intended cross-domain security policy, and execute arbitrary code or obtain sensitive information, via a crafted HTML document, aka "Event Handling Cross-Domain Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13255
https://exchange.xforce.ibmcloud.com/vulnerabilities/45565
https://exchange.xforce.ibmcloud.com/vulnerabilities/45562
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-058
http://www.us-cert.gov/cas/techalerts/TA08-288A.html
http://www.securitytracker.com/id?1021047