CVE-2025-47871

Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server:10.8.0:-::::::
	cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc1::::::
	cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc2::::::
	cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc3::::::

History

08 Jul 2025, 14:11

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-30 17:15

Updated : 2025-07-08 14:11

NVD link : CVE-2025-47871

Mitre link : CVE-2025-47871

CVE.ORG link : CVE-2025-47871

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-863

Incorrect Authorization

{"id": "CVE-2025-47871", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "published": "2025-06-30T17:15:32.777", "references": [{"url": "https://mattermost.com/security-updates", "tags": ["Vendor Advisory"], "source": "responsibledisclosure@mattermost.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint."}, {"lang": "es", "value": "Las versiones de Mattermost 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 no pueden validar correctamente la membres\u00eda del canal al recuperar metadatos de ejecuci\u00f3n del libro de estrategias, lo que permite que los usuarios autenticados que son miembros del libro de estrategias pero no miembros del canal accedan a informaci\u00f3n confidencial sobre canales privados vinculados, incluido el nombre del canal, el nombre para mostrar y el n\u00famero de participantes a trav\u00e9s del endpoint de la API de metadatos de ejecuci\u00f3n."}], "lastModified": "2025-07-08T14:11:33.783", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9CEF0379-7E63-452C-8084-067092A25D92", "versionEndExcluding": "9.11.16", "versionStartIncluding": "9.11.0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77EE1558-3E63-4178-90EB-DBC8F99B75AB", "versionEndExcluding": "10.5.6", "versionStartIncluding": "10.5.0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5E1A952E-F96B-4D50-B8FD-7CAFFE73263F", "versionEndExcluding": "10.6.6", "versionStartIncluding": "10.6.0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "28D55588-A52A-4ADD-AC90-A46BED4555A1", "versionEndExcluding": "10.7.3", "versionStartIncluding": "10.7.0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:10.8.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20DB174F-F76D-49F1-BB44-638A5FA71CDA"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "51CA3B67-FE72-49C2-97EA-D7D86F3991EE"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C4DBC6F-061B-4844-9E80-596D4890DA2A"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA2C469A-7A94-4C55-9738-21C16B8C0817"}], "operator": "OR"}]}], "sourceIdentifier": "responsibledisclosure@mattermost.com"}