CVE-2025-3227

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 enforce channel member management permissions in playbook runs, allowing authenticated users without the 'Manage Channel Members' permission to add or remove users from public and private channels by manipulating playbook run participants when the run is linked to a channel.

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 LOW

Integrity Impact NONE

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, 14:31

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-20 15:15

Updated : 2025-07-08 14:31

NVD link : CVE-2025-3227

Mitre link : CVE-2025-3227

CVE.ORG link : CVE-2025-3227

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-863

Incorrect Authorization

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