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    CVE-2004-0763

    Mozilla Firefox 0.9.1 and 0.9.2 allows remote web sites to spoof certificates of trusted web sites via redirects and Javascript that uses the "onunload" method.

    Published:Jul 26, 2004
    Last Modified:Apr 16, 2026
    EPS:Aug 3, 2004
    EPSS Score:0.13166
    CVSS Score:5

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/24312https://www.exploit-db.com/exploits/24069

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-84144 (CVSS 7.5) — Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence…
    CVE-2026-84143 (CVSS 9.8) — Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of th…
    CVE-2026-84142 (CVSS 9.8) — Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or a…
    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
    CVE-2026-84140 (CVSS 9.8) — Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ES…
    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
    CVE-2026-84137 (CVSS 4.3) — Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153…
    CVE-2026-84136 (CVSS 6.1) — Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, …
    CVE-2026-84135 (CVSS 9.8) — Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.…

    References

    ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.49/SCOSA-2005.49.txt
    http://bugzilla.mozilla.org/show_bug.cgi?id=253121
    http://lists.grok.org.uk/pipermail/full-disclosure/2004-July/024372.html
    http://marc.info/?l=bugtraq&m=109087067730938&w=2
    http://marc.info/?l=bugtraq&m=109900315219363&w=2
    http://secunia.com/advisories/12160/
    http://www.cipher.org.uk/index.php?p=advisories/Certificate_Spoofing_Mozilla_FireFox_25-07-2004.advisory
    http://www.gentoo.org/security/en/glsa/glsa-200408-22.xml
    http://www.mozilla.org/projects/security/known-vulnerabilities.html
    http://www.novell.com/linux/security/advisories/2004_36_mozilla.html
    http://www.redhat.com/support/errata/RHSA-2004-421.html
    http://www.securityfocus.com/bid/15495
    https://exchange.xforce.ibmcloud.com/vulnerabilities/16796
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3989
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9436
    ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.49/SCOSA-2005.49.txt
    http://bugzilla.mozilla.org/show_bug.cgi?id=253121
    http://lists.grok.org.uk/pipermail/full-disclosure/2004-July/024372.html
    http://marc.info/?l=bugtraq&m=109087067730938&w=2
    http://marc.info/?l=bugtraq&m=109900315219363&w=2
    http://secunia.com/advisories/12160/
    http://www.cipher.org.uk/index.php?p=advisories/Certificate_Spoofing_Mozilla_FireFox_25-07-2004.advisory
    http://www.gentoo.org/security/en/glsa/glsa-200408-22.xml
    http://www.mozilla.org/projects/security/known-vulnerabilities.html
    http://www.novell.com/linux/security/advisories/2004_36_mozilla.html
    http://www.redhat.com/support/errata/RHSA-2004-421.html
    http://www.securityfocus.com/bid/15495
    https://exchange.xforce.ibmcloud.com/vulnerabilities/16796
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3989
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9436

    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