CVE-2018-5138

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    CVE-2018-5138

    Published: 11 Jun 2018Last Modified: 10 Mar 2026

    Summary:

    Details: A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser panel inside another app) and the default browser is Firefox for Android. This could allow an attacker to spoof which page is actually loaded and in use. Note: this issue only affects Firefox for Android. Other versions and operating systems are unaffected. This vulnerability affects Firefox < 59.

    References: , http://www.securityfocus.com/bid/103386, http://www.securitytracker.com/id/1040514, https://www.mozilla.org/security/advisories/mfsa2018-06/, https://bugzilla.mozilla.org/show_bug.cgi?id=1432624

    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
    CVE-2018-5138 | CVE-DB