CVE-2016-2820

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    CVE-2016-2820

    Published: 30 Apr 2016Last Modified: 10 Mar 2026

    Summary:

    Details: The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

    References: http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html, , http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html, http://www.securitytracker.com/id/1035692, http://www.mozilla.org/security/announce/2016/mfsa2016-48.html, http://www.ubuntu.com/usn/USN-2936-2, http://www.ubuntu.com/usn/USN-2936-3, https://security.gentoo.org/glsa/201701-15, http://www.ubuntu.com/usn/USN-2936-1, https://bugzilla.mozilla.org/show_bug.cgi?id=870870

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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