CVE-2019-12472

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    CVE-2019-12472

    Published: 10 Jul 2019Last Modified: 8 Jul 2026

    Summary:

    Details: An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

    References: https://phabricator.wikimedia.org/T199540, https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 6a5b1dec913d4566acd6b0e31fbde212deccf001
    Fixed -b1558252c5478239b6ecc6d1950f07f938b12604

    Affected versions

    1.32.1
    1.32.0

    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