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    CVE-2003-1328

    The showHelp() function in Microsoft Internet Explorer 5.01, 5.5, and 6.0 supports certain types of pluggable protocols that allow remote attackers to bypass the cross-domain security model and execute arbitrary code, aka "Improper Cross Domain Security Validation with ShowHelp functionality."

    Published:Feb 19, 2003
    Last Modified:Apr 16, 2026
    EPS:Sep 1, 2004
    EPSS Score:0.43563
    CVSS Score:7.5

    Affected Products

    Vendor
    Microsoft
    Product
    Ie
    Vendor
    Microsoft
    Product
    Internet Explorer

    Exploits

    https://www.exploit-db.com/exploits/22226

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2012-4792 (CVSS 8.8) — Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arb…
    CVE-2012-1539 (CVSS 8.1) — Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary cod…
    CVE-2012-1545 (CVSS 5.8) — Microsoft Internet Explorer 6 through 9, and 10 Consumer Preview, allows remote attackers to bypass Protected …
    CVE-2002-2435 (CVSS 4.3) — The Cascading Style Sheets (CSS) implementation in Microsoft Internet Explorer 8.0 and earlier does not proper…
    CVE-2010-5071 (CVSS 5) — The JavaScript implementation in Microsoft Internet Explorer 8.0 and earlier does not properly restrict the se…
    CVE-2011-2382 (CVSS 4.3) — Microsoft Internet Explorer 8 and earlier, and Internet Explorer 9 beta, does not properly restrict cross-zone…
    CVE-2011-2383 (CVSS 4.3) — Microsoft Internet Explorer 9 and earlier does not properly restrict cross-zone drag-and-drop actions, which a…
    CVE-2010-1260 (CVSS 7.5) — The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attac…
    CVE-2010-2118 (CVSS 4.3) — Microsoft Internet Explorer 6.0.2900.2180 and 8.0.7600.16385 allows remote attackers to cause a denial of serv…
    CVE-2010-1991 (CVSS 5) — Microsoft Internet Explorer 6.0.2900.2180, 7, and 8.0.7600.16385 executes a mail application in situations whe…

    References

    http://archives.neohapsis.com/archives/bugtraq/2003-02/0083.html
    http://www.ciac.org/ciac/bulletins/n-038.shtml
    http://www.iss.net/security_center/static/11259.php
    http://www.kb.cert.org/vuls/id/400577
    http://www.securityfocus.com/bid/6780
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-004
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A57
    http://archives.neohapsis.com/archives/bugtraq/2003-02/0083.html
    http://www.ciac.org/ciac/bulletins/n-038.shtml
    http://www.iss.net/security_center/static/11259.php
    http://www.kb.cert.org/vuls/id/400577
    http://www.securityfocus.com/bid/6780
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-004
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A57

    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