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    2 vulnerabilities found for Mediawiki - CentralAuth Extension by Wikimedia Foundation

    CVE-2026-100244 (GCVE-0-2026-100244)

    Vulnerability from cvelistv5 – Published: 2026-09-29 16:48 – Updated: 2026-09-30 20:44
    VLAI
    Title
    CentralAuth exposes locally suppressed block information via globaluserinfo API and Special:CentralAuth (incomplete fix for CVE-2025-62669)
    Summary
    Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation. This issue affects Mediawiki - CentralAuth Extension: from * before 1.46.1, 1.45.5, 1.43.10.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-30 20:43 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Assigner
    References
    Impacted products
    Vendor Product Version
    Wikimedia Foundation Mediawiki - CentralAuth Extension Affected: * , < 1.46.1, 1.45.5, 1.43.10 (semver)
    		Create a notification for this product.
    Credits
    mjbommar
    Show details on NVD website
    To clipboard 

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          "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/CentralAuth/+/refs/heads/master",
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          "url": "https://phabricator.wikimedia.org/T432789"
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    CVE-2025-6926 (GCVE-0-2025-6926)

    Vulnerability from cvelistv5 – Published: 2025-07-03 16:23 – Updated: 2025-11-03 20:07
    VLAI
    Title
    Security Authentication Bypass in CentralAuth
    Summary
    Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
    Severity
    8.8 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-07-03 17:40 UTC
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    References
    Impacted products
    Vendor Product Version
    Wikimedia Foundation Mediawiki - CentralAuth Extension Affected: 1.39.x , < 1.39.13 (semver)
    Affected: 1.42.x , < 1.42.7 (semver)
    Affected: 1.43.x , < 1.43.2 (semver)
    		Create a notification for this product.
    Credits
    Tgr
    Show details on NVD website
    To clipboard 

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