{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-55073","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","state":"PUBLISHED","assignerShortName":"Mattermost","dateReserved":"2025-10-15T11:16:32.206Z","datePublished":"2025-11-14T08:03:16.922Z","dateUpdated":"2025-11-14T15:46:58.129Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Mattermost","vendor":"Mattermost","versions":[{"lessThanOrEqual":"10.11.3","status":"affected","version":"10.11.0","versionType":"semver"},{"lessThanOrEqual":"10.5.11","status":"affected","version":"10.5.0","versionType":"semver"},{"lessThanOrEqual":"10.12.0","status":"affected","version":"10.12.0","versionType":"semver"},{"version":"11.0.0","status":"unaffected"},{"version":"10.11.4","status":"unaffected"},{"version":"10.5.12","status":"unaffected"},{"version":"10.12.1","status":"unaffected"}]}],"credits":[{"lang":"en","type":"finder","value":"Juho Forsén"}],"descriptions":[{"lang":"en","value":"Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL."}],"metrics":[{"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseSeverity":"MEDIUM","baseScore":5.4},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-306: Missing Authentication for Critical Function","cweId":"CWE-306"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"solutions":[{"value":"Update Mattermost to versions 11.0.0, 10.11.4, 10.5.12, 10.12.1 or higher.","lang":"en"}],"source":{"advisory":"MMSA-2025-00492","defect":["https://mattermost.atlassian.net/browse/MM-64368"],"discovery":"{\"self\"=>\"https://mattermost.atlassian.net/rest/api/2/customFieldOption/10557\", \"value\"=>\"Internal\", \"id\"=>\"10557\"}"},"title":"MS Teams plugin OAuth allows editing arbitrary posts","providerMetadata":{"orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","shortName":"Mattermost","dateUpdated":"2025-11-14T08:03:16.922Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-14T15:46:46.741736Z","id":"CVE-2025-55073","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2025-11-14T15:46:58.129Z"}}]}}