CampaignEvents API missing authorization exposes meeting and chat URLs_CVE-2026-0817

{
    "lastseen": "",
    "description": "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.",
    "published": "2026-01-09T15:50:50.616Z",
    "modified": "2026-01-09T17:37:36.036Z",
    "type": "cve",
    "title": "CampaignEvents API missing authorization exposes meeting and chat URLs",
    "source": "wikimedia-foundation",
    "references": "https://phabricator.wikimedia.org/T410560\nhttps://gerrit.wikimedia.org/r/q/I7ed0049691258c8bd2555e599b9b88490fbe3358",
    "id": "CVE-2026-0817",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "Wikimedia Foundation MediaWiki - CampaignEvents extension 1.45\nWikimedia Foundation MediaWiki - CampaignEvents extension 1.44\nWikimedia Foundation MediaWiki - CampaignEvents extension 1.43\nWikimedia Foundation MediaWiki - CampaignEvents extension 1.39",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "MediaWiki - CampaignEvents extension",
    "version": "1.45",
    "vendor": "Wikimedia Foundation",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}