CVE-2009-4074
MEDIUMEPSS 96th pctlDescription
The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing mechanism" to conduct cross-site scripting (XSS) attacks against web sites that have no inherent XSS vulnerabilities, related to the details of output encoding and improper modification of an HTML attribute, aka "XSS Filter Script Handling Vulnerability."
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Very high risk: more likely to be exploited than 96% of all known CVEs.
References
- http://hackademix.net/2009/11/21/ies-xss-filter-creates-xss-vulnerabilities/
- http://www.owasp.org/images/5/50/OWASP-Italy_Day_IV_Maone.pdf
- http://www.securityfocus.com/bid/37135
- http://www.theregister.co.uk/2009/11/20/internet_explorer_security_flaw/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-002
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7715
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.