CVE-2018-18495

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    CVE-2018-18495

    Published: 28 Feb 2019Last Modified: 10 Mar 2026

    Summary:

    Details: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

    References: , http://www.securityfocus.com/bid/106167, https://usn.ubuntu.com/3844-1/, https://www.mozilla.org/security/advisories/mfsa2018-29/, https://bugzilla.mozilla.org/show_bug.cgi?id=1427585

    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