{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-0817",
        "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
        "state": "PUBLISHED",
        "assignerShortName": "wikimedia-foundation",
        "dateReserved": "2026-01-09T15:44:08.294Z",
        "datePublished": "2026-01-09T15:50:50.616Z",
        "dateUpdated": "2026-01-09T17:37:36.036Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "product": "MediaWiki - CampaignEvents extension",
                    "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/CampaignEvents",
                    "vendor": "Wikimedia Foundation",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.45"
                        },
                        {
                            "status": "affected",
                            "version": "1.44"
                        },
                        {
                            "status": "affected",
                            "version": "1.43"
                        },
                        {
                            "status": "affected",
                            "version": "1.39"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "Missing Authorization vulnerability in Wikimedia Foundation MediaWiki - CampaignEvents extension allows Privilege Abuse.<p>This issue affects MediaWiki - CampaignEvents extension: 1.45, 1.44, 1.43, 1.39.</p>"
                        }
                    ],
                    "value": "Missing Authorization vulnerability in Wikimedia Foundation MediaWiki - CampaignEvents extension allows Privilege Abuse.This issue affects MediaWiki - CampaignEvents extension: 1.45, 1.44, 1.43, 1.39."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-122",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-122 Privilege Abuse"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-862",
                            "description": "CWE-862 Missing Authorization",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
                "shortName": "wikimedia-foundation",
                "dateUpdated": "2026-01-09T15:50:50.616Z"
            },
            "references": [
                {
                    "url": "https://phabricator.wikimedia.org/T410560"
                },
                {
                    "url": "https://gerrit.wikimedia.org/r/q/I7ed0049691258c8bd2555e599b9b88490fbe3358"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "CampaignEvents API missing authorization exposes meeting and chat URLs",
            "x_generator": {
                "engine": "Vulnogram 0.5.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.3,
                            "attackVector": "NETWORK",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "LOW"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-09T17:35:46.425216Z",
                                "id": "CVE-2026-0817",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-09T17:37:36.036Z"
                }
            }
        ]
    }
}