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    CVE-2009-4074

    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."

    Published:Nov 25, 2009
    Last Modified:Apr 23, 2026
    EPS:Nov 25, 2009
    EPSS Score:0.19684
    CVSS Score:4.3

    Affected Products

    Vendor
    Microsoft
    Product
    Internet Explorer

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High