UBUNTU-CVE-2021-44857

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    UBUNTU-CVE-2021-44857

    Published: 17 Dec 2021Last Modified: 16 Jul 2025
    Upstream:
    CVE-2021-44857

    Summary:

    Details: An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a private wiki that has at least one page set in $wgWhitelistRead.

    References: https://ubuntu.com/security/CVE-2021-44857, https://phabricator.wikimedia.org/T297322, https://lists.wikimedia.org/hyperkitty/list/[email protected]/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/, https://github.com/advisories/GHSA-x4wg-g4fv-f8m6, https://www.cve.org/CVERecord?id=CVE-2021-44857

    Affected packages

    Package

    Name: mediawiki

    Purl: pkg:deb/ubuntu/mediawiki@1:1.35.5-1?arch=source&distro=jammy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:1.35.5-1

    Affected versions

    1:1.35.3-1
    1:1.35.4-1

    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
    UBUNTU-CVE-2021-44857 | CVE-DB