CVE-2025-3227
Unauthorized channel member management through playbook runs
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Unauthorized channel member management through playbook runs
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.
Reserved 2025-04-03 | Published 2025-06-20 | Updated 2025-06-20 | Assigner MattermostCWE-863: Incorrect Authorization
BhaRat (hackit_bharat)
mattermost.com/security-updates
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