{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103442", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-09-30T15:41:01.270Z", "datePublished": "2026-09-30T16:09:40.369Z", "dateUpdated": "2026-09-30T16:09:40.369Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-30T16:09:40.369Z"}, "title": "MergeAccount PHP object injection via session-key substitution", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-15", "description": "CWE-15 External control of system or configuration setting", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-242", "descriptions": [{"lang": "en", "value": "CAPEC-242 Code Injection"}]}], "affected": [{"vendor": "The Wikimedia Foundation", "product": "MediaWiki CentralAuth extension", "repo": "https://gerrit.wikimedia.org/r/mediawiki/extensions/CentralAuth", "versions": [{"status": "affected", "version": "1.46"}, {"status": "affected", "version": "1.45"}, {"status": "affected", "version": "1.43"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.\n\nThis issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.<p>This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.</p>"}]}], "references": [{"url": "https://phabricator.wikimedia.org/T435624"}, {"url": "https://gerrit.wikimedia.org/r/q/I9c59e5c3f217c1eaa02934a076604049bac2b025"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "LOW", "exploitMaturity": "PROOF_OF_CONCEPT", "Safety": "NEGLIGIBLE", "Automatable": "YES", "Recovery": "USER", "valueDensity": "DIFFUSE", "vulnerabilityResponseEffort": "MODERATE", "providerUrgency": "AMBER", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.2, "vectorString": "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"}}], "credits": [{"lang": "en", "value": "Marco Paciaroni (BomboBombone)", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"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"}]}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.\n\nThis issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43."}], "id": "CVE-2026-103442", "lastModified": "2026-09-30T16:27:40.143", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "USER", "Safety": "NEGLIGIBLE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "AMBER", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "PASSIVE", "valueDensity": "DIFFUSE", "vectorString": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "MODERATE"}, "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary"}]}, "published": "2026-09-30T16:17:10.050", "references": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://gerrit.wikimedia.org/r/q/I9c59e5c3f217c1eaa02934a076604049bac2b025"}, {"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://phabricator.wikimedia.org/T435624"}], "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-15"}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.46"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.45"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.43"}}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 93.0, "source": "matching"}]}, "original": {"product": "MediaWiki CentralAuth extension", "source": "cna", "vendor": "The Wikimedia Foundation"}, "product": "mediawiki_-_centralauth_extension", "vendor": "wikimedia"}], "created": "2026-09-30T18:00:17.849979+00:00", "updated": "2026-09-30T20:15:05.074648+00:00", "vendors": ["wikimedia", "wikimedia$PRODUCT$mediawiki_-_centralauth_extension"]}