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    CVE-2007-2870

    Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2, allows remote attackers to bypass the same-origin policy and conduct cross-site scripting (XSS) and other attacks by using the addEventListener method to add an event listener for a site, which is executed in the context of that site.

    Published:May 31, 2007
    Last Modified:Apr 23, 2026
    EPS:Jun 1, 2007
    EPSS Score:0.08295
    CVSS Score:4.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    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

    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
    http://osvdb.org/35136
    http://secunia.com/advisories/25469
    http://secunia.com/advisories/25476
    http://secunia.com/advisories/25488
    http://secunia.com/advisories/25490
    http://secunia.com/advisories/25491
    http://secunia.com/advisories/25533
    http://secunia.com/advisories/25534
    http://secunia.com/advisories/25559
    http://secunia.com/advisories/25635
    http://secunia.com/advisories/25647
    http://secunia.com/advisories/25685
    http://secunia.com/advisories/25750
    http://secunia.com/advisories/25858
    http://security.gentoo.org/glsa/glsa-200706-06.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.571857
    http://www.debian.org/security/2007/dsa-1300
    http://www.debian.org/security/2007/dsa-1306
    http://www.debian.org/security/2007/dsa-1308
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:120
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:126
    http://www.mozilla.org/security/announce/2007/mfsa2007-16.html
    http://www.novell.com/linux/security/advisories/2007_36_mozilla.html
    http://www.redhat.com/support/errata/RHSA-2007-0400.html
    http://www.redhat.com/support/errata/RHSA-2007-0402.html
    http://www.securityfocus.com/archive/1/470172/100/200/threaded
    http://www.securityfocus.com/bid/24242
    http://www.securitytracker.com/id?1018160
    http://www.securitytracker.com/id?1018161
    http://www.ubuntu.com/usn/usn-468-1
    http://www.us-cert.gov/cas/techalerts/TA07-151A.html
    http://www.vupen.com/english/advisories/2007/1994
    https://exchange.xforce.ibmcloud.com/vulnerabilities/34614
    https://issues.rpath.com/browse/RPL-1424
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9547
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
    http://osvdb.org/35136
    http://secunia.com/advisories/25469
    http://secunia.com/advisories/25476
    http://secunia.com/advisories/25488
    http://secunia.com/advisories/25490
    http://secunia.com/advisories/25491
    http://secunia.com/advisories/25533
    http://secunia.com/advisories/25534
    http://secunia.com/advisories/25559
    http://secunia.com/advisories/25635
    http://secunia.com/advisories/25647
    http://secunia.com/advisories/25685
    http://secunia.com/advisories/25750
    http://secunia.com/advisories/25858
    http://security.gentoo.org/glsa/glsa-200706-06.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.571857
    http://www.debian.org/security/2007/dsa-1300
    http://www.debian.org/security/2007/dsa-1306
    http://www.debian.org/security/2007/dsa-1308
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:120
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:126
    http://www.mozilla.org/security/announce/2007/mfsa2007-16.html
    http://www.novell.com/linux/security/advisories/2007_36_mozilla.html
    http://www.redhat.com/support/errata/RHSA-2007-0400.html
    http://www.redhat.com/support/errata/RHSA-2007-0402.html
    http://www.securityfocus.com/archive/1/470172/100/200/threaded
    http://www.securityfocus.com/bid/24242
    http://www.securitytracker.com/id?1018160
    http://www.securitytracker.com/id?1018161
    http://www.ubuntu.com/usn/usn-468-1
    http://www.us-cert.gov/cas/techalerts/TA07-151A.html
    http://www.vupen.com/english/advisories/2007/1994
    https://exchange.xforce.ibmcloud.com/vulnerabilities/34614
    https://issues.rpath.com/browse/RPL-1424
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9547

    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