CVE-2018-5134

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    CVE-2018-5134

    Published: 11 Jun 2018Last Modified: 10 Mar 2026

    Summary:

    Details: WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox < 59.

    References: , https://usn.ubuntu.com/3596-1/, https://www.mozilla.org/security/advisories/mfsa2018-06/, http://www.securityfocus.com/bid/103386, http://www.securitytracker.com/id/1040514, https://bugzilla.mozilla.org/show_bug.cgi?id=1429379

    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