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    2 vulnerabilities found for MediaWiki CentralAuth extension by The Wikimedia Foundation

    CVE-2026-103442 (GCVE-0-2026-103442)

    Vulnerability from nvd – Published: 2026-09-30 16:09 – Updated: 2026-09-30 16:09
    VLAI
    Title
    MergeAccount PHP object injection via session-key substitution
    Summary
    External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection. This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
    CWE
    • CWE-15 - External control of system or configuration setting
    Assigner
    References
    Impacted products
    Vendor Product Version
    The Wikimedia Foundation MediaWiki CentralAuth extension Affected: 1.46
    Affected: 1.45
    Affected: 1.43
    		Create a notification for this product.
    Credits
    Marco Paciaroni (BomboBombone)
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MediaWiki CentralAuth extension",
          "repo": "https://gerrit.wikimedia.org/r/mediawiki/extensions/CentralAuth",
          "vendor": "The Wikimedia Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "1.46"
            },
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              "status": "affected",
              "version": "1.45"
            },
            {
              "status": "affected",
              "version": "1.43"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Marco Paciaroni (BomboBombone)"
        }
      ],
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            }
          ],
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      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "YES",
            "Recovery": "USER",
            "Safety": "NEGLIGIBLE",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "HIGH",
            "providerUrgency": "AMBER",
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            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
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          "scenarios": [
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-15 External control of system or configuration setting",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-30T16:09:40.369Z",
        "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
        "shortName": "wikimedia-foundation"
      },
      "references": [
        {
          "url": "https://phabricator.wikimedia.org/T435624"
        },
        {
          "url": "https://gerrit.wikimedia.org/r/q/I9c59e5c3f217c1eaa02934a076604049bac2b025"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "MergeAccount PHP object injection via session-key substitution",
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        "engine": "Vulnogram 1.0.5"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
    "assignerShortName": "wikimedia-foundation",
    "cveId": "CVE-2026-103442",
    "datePublished": "2026-09-30T16:09:40.369Z",
    "dateReserved": "2026-09-30T15:41:01.270Z",
    "dateUpdated": "2026-09-30T16:09:40.369Z",
    "state": "PUBLISHED"
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}

    CVE-2026-103442 (GCVE-0-2026-103442)

    Vulnerability from cvelistv5 – Published: 2026-09-30 16:09 – Updated: 2026-09-30 16:09
    VLAI
    Title
    MergeAccount PHP object injection via session-key substitution
    Summary
    External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection. This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
    CWE
    • CWE-15 - External control of system or configuration setting
    Assigner
    References
    Impacted products
    Vendor Product Version
    The Wikimedia Foundation MediaWiki CentralAuth extension Affected: 1.46
    Affected: 1.45
    Affected: 1.43
    		Create a notification for this product.
    Credits
    Marco Paciaroni (BomboBombone)
    Show details on NVD website
    To clipboard 

    {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MediaWiki CentralAuth extension",
          "repo": "https://gerrit.wikimedia.org/r/mediawiki/extensions/CentralAuth",
          "vendor": "The Wikimedia Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "1.46"
            },
            {
              "status": "affected",
              "version": "1.45"
            },
            {
              "status": "affected",
              "version": "1.43"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Marco Paciaroni (BomboBombone)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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            }
          ],
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      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
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            "privilegesRequired": "HIGH",
            "providerUrgency": "AMBER",
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            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
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            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "MODERATE"
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          "scenarios": [
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              "value": "GENERAL"
            }
          ]
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      ],
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        {
          "descriptions": [
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              "cweId": "CWE-15",
              "description": "CWE-15 External control of system or configuration setting",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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        {
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          "url": "https://gerrit.wikimedia.org/r/q/I9c59e5c3f217c1eaa02934a076604049bac2b025"
        }
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      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "MergeAccount PHP object injection via session-key substitution",
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