CVE-2018-5143

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    CVE-2018-5143

    Published: 11 Jun 2018Last Modified: 10 Mar 2026

    Summary:

    Details: URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.

    References: , http://www.securityfocus.com/bid/103386, http://www.securitytracker.com/id/1040514, https://usn.ubuntu.com/3596-1/, https://www.mozilla.org/security/advisories/mfsa2018-06/, https://bugzilla.mozilla.org/show_bug.cgi?id=1422643

    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