| Package | Affected versions | Patched versions |
|---|---|---|
| mattermost server | ≥ 9.2.0, ≤ 9.2.1≤ 8.1.5 |
Mattermost fails to validate team membership when a user attempts to access a playbook, allowing a user with permissions to a playbook but no permissions to the team the playbook is on to access and modify the playbook. This can happen if the user was once a member of the team, got permissions to the playbook and was then removed from the team.
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