{"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"}}]}}