{"id":"CVE-2025-27571","state":"PUBLISHED","title":"Channel metadata visible in archived channels despite configuration setting","description":"Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the \"Allow Users to View Archived Channels\" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.","publishedAt":"2025-04-16T07:45:58.802Z","updatedAt":"2025-04-16T14:34:19.313Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.5.0","status":"affected","lessThanOrEqual":"10.5.1","versionType":"semver"},{"version":"10.4.0","status":"affected","lessThanOrEqual":"10.4.3","versionType":"semver"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.9","versionType":"semver"},{"version":"10.6.0","status":"unaffected"},{"version":"10.5.2","status":"unaffected"},{"version":"10.4.4","status":"unaffected"},{"version":"9.11.10","status":"unaffected"}]}],"references":["https://mattermost.com/security-updates"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:08:47.682Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/27xxx/CVE-2025-27571.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-27571","state":"PUBLISHED","datePublished":"2025-04-16T07:45:58.802Z","dateUpdated":"2025-04-16T14:34:19.313Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2025-04-08T07:50:19.660Z"},"containers":{"cna":{"title":"Channel metadata visible in archived channels despite configuration setting","descriptions":[{"lang":"en","value":"Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the \"Allow Users to View Archived Channels\" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived."}],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.5.0","status":"affected","lessThanOrEqual":"10.5.1","versionType":"semver"},{"version":"10.4.0","status":"affected","lessThanOrEqual":"10.4.3","versionType":"semver"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.9","versionType":"semver"},{"version":"10.6.0","status":"unaffected"},{"version":"10.5.2","status":"unaffected"},{"version":"10.4.4","status":"unaffected"},{"version":"9.11.10","status":"unaffected"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateUpdated":"2025-04-16T07:45:58.802Z"},"credits":[{"lang":"en","type":"finder","value":"hackit_bharat"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost to versions 10.6.0, 10.5.2, 10.4.4, 9.11.10 or higher.</p>"}],"value":"Update Mattermost to versions 10.6.0, 10.5.2, 10.4.4, 9.11.10 or higher."}],"source":{"advisory":"MMSA-2025-00452","defect":["https://mattermost.atlassian.net/browse/MM-63192"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-16T14:19:48.223409Z","id":"CVE-2025-27571","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-16T14:34:19.313Z"}}]}}}