{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-6226", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2025-06-18T10:41:12.541Z", "datePublished": "2025-07-18T08:48:02.717Z", "dateUpdated": "2025-08-07T09:53:06.698Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "10.5.6", "status": "affected", "version": "10.5.0", "versionType": "semver"}, {"lessThanOrEqual": "10.8.1", "status": "affected", "version": "10.8.0", "versionType": "semver"}, {"lessThanOrEqual": "10.7.3", "status": "affected", "version": "10.7.0", "versionType": "semver"}, {"lessThanOrEqual": "9.11.16", "status": "affected", "version": "9.11.0", "versionType": "semver"}, {"version": "10.9.0", "status": "unaffected"}, {"version": "10.5.8", "status": "unaffected"}, {"version": "10.8.2", "status": "unaffected"}, {"version": "10.7.4", "status": "unaffected"}, {"version": "9.11.17", "status": "unaffected"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Dawid Kulikowski (daw10)"}], "descriptions": [{"lang": "en", "value": "Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts."}], "metrics": [{"cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseSeverity": "MEDIUM", "baseScore": 6.5}, "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 10.9.0, 10.5.7, 10.8.2, 10.7.4, 9.11.17 or higher.", "lang": "en"}], "source": {"advisory": "MMSA-2025-00490", "defect": ["https://mattermost.atlassian.net/browse/MM-64225"], "discovery": "EXTERNAL"}, "title": "IDOR in CreatePost API allows for timeboxed message disclosure", "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2025-08-07T09:53:06.698Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-07-18T12:39:46.280328Z", "id": "CVE-2025-6226", "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": "2025-07-18T12:46:21.941Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-6226", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-07-18T12:39:46.280328Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-18T12:44:20.694Z"}}], "cna": {"title": "IDOR in CreatePost API allows for timeboxed message disclosure", "source": {"defect": ["https://mattermost.atlassian.net/browse/MM-64225"], "advisory": "MMSA-2025-00490", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Dawid Kulikowski (daw10)"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Mattermost", "product": "Mattermost", "versions": [{"status": "affected", "version": "10.5.0", "versionType": "semver", "lessThanOrEqual": "10.5.6"}, {"status": "affected", "version": "10.8.0", "versionType": "semver", "lessThanOrEqual": "10.8.1"}, {"status": "affected", "version": "10.7.0", "versionType": "semver", "lessThanOrEqual": "10.7.3"}, {"status": "affected", "version": "9.11.0", "versionType": "semver", "lessThanOrEqual": "9.11.16"}, {"status": "unaffected", "version": "10.9.0"}, {"status": "unaffected", "version": "10.5.8"}, {"status": "unaffected", "version": "10.8.2"}, {"status": "unaffected", "version": "10.7.4"}, {"status": "unaffected", "version": "9.11.17"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update Mattermost to versions 10.9.0, 10.5.7, 10.8.2, 10.7.4, 9.11.17 or higher."}], "references": [{"url": "https://mattermost.com/security-updates"}], "descriptions": [{"lang": "en", "value": "Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-306", "description": "CWE-306: Missing Authentication for Critical Function"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2025-08-07T09:53:06.698Z"}}}, "cveMetadata": {"cveId": "CVE-2025-6226", "state": "PUBLISHED", "dateUpdated": "2025-08-07T09:53:06.698Z", "dateReserved": "2025-06-18T10:41:12.541Z", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "datePublished": "2025-07-18T08:48:02.717Z", "assignerShortName": "Mattermost"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "3F117291-CF45-4790-8BEB-E51DB0BAEF82", "versionEndExcluding": "9.11.17", "versionStartIncluding": "9.11.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "C91210B2-4844-4928-9AE6-086E1C55AACB", "versionEndExcluding": "10.5.7", "versionStartIncluding": "10.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "16C5891E-6981-4903-A57E-A7AF4FDE2D1B", "versionEndExcluding": "10.7.4", "versionStartIncluding": "10.7.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "7B0956AE-D67B-4FC3-98A8-67DD6904A90F", "versionEndExcluding": "10.8.2", "versionStartIncluding": "10.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts."}, {"lang": "es", "value": "Las versiones de Mattermost 10.5.x &lt;= 10.5.6, 10.8.x &lt;= 10.8.1, 10.7.x &lt;= 10.7.3, 9.11.x &lt;= 9.11.16 no pueden verificar la autorizaci\u00f3n al recuperar publicaciones en cach\u00e9 mediante PendingPostID, lo que permite que un usuario autenticado lea publicaciones en canales privados a los que no tiene acceso al adivinar el PendingPostID de publicaciones creadas recientemente."}], "id": "CVE-2025-6226", "lastModified": "2025-10-02T19:49:18.610", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}, "published": "2025-07-18T09:15:26.993", "references": [{"source": "responsibledisclosure@mattermost.com", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}], "sourceIdentifier": "responsibledisclosure@mattermost.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}

{}