CVE-2021-42048

    Dashboard / Vulnerabilities / CVE-2021-42048

    CVE-2021-42048

    Published: 29 Sept 2022Last Modified: 9 Jul 2026

    Summary:

    Details: An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero edits.

    References: https://gerrit.wikimedia.org/r/q/Iaa90a8976834d70caad592e9d1b18510318db537, https://phabricator.wikimedia.org/T289064

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.36.2
    1.36.1
    1.36.0
    1.36.0-rc.0

    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-2021-42048 | CVE-DB