{
    "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"
            }
        }
    }
}