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    2 vulnerabilities found for Mediawiki - EventBus Extension by Wikimedia Foundation

    CVE-2026-100241 (GCVE-0-2026-100241)

    Vulnerability from nvd – Published: 2026-09-29 16:36 – Updated: 2026-09-30 20:46
    VLAI
    Title
    Private change tags exposed to anonymous users via revision-tags-change events
    Summary
    Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation. This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.
    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 20:45 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Assigner
    References
    Impacted products
    Credits
    kostajh
    Show details on NVD website
    To clipboard 

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              "attackVector": "NETWORK",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Mediawiki - EventBus Extension",
          "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/EventBus/+/refs/heads/master",
          "vendor": "Wikimedia Foundation",
          "versions": [
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              "version": "1.47.0-alpha"
            }
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      "references": [
        {
          "url": "https://phabricator.wikimedia.org/T432948"
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          "url": "https://gerrit.wikimedia.org/r/q/I6d79037edc771fe9a2889c543e12cf7b1296aab8"
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    "dateReserved": "2026-09-25T16:02:34.842Z",
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    CVE-2026-100241 (GCVE-0-2026-100241)

    Vulnerability from cvelistv5 – Published: 2026-09-29 16:36 – Updated: 2026-09-30 20:46
    VLAI
    Title
    Private change tags exposed to anonymous users via revision-tags-change events
    Summary
    Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation. This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.
    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 20:45 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Assigner
    References
    Impacted products
    Credits
    kostajh
    Show details on NVD website
    To clipboard 

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              "attackVector": "NETWORK",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
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        "title": "CISA ADP Vulnrichment"
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    ],
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          "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/EventBus/+/refs/heads/master",
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