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Mattermost versions 10.5.x <= 10.5.3, 9.11.x <= 9.11.11 fail to check `RestrictSystemAdmin` setting if user doesn't have access to `ExperimentalSettings` which allows a System Manager to access `ExperimentSettings` when `RestrictSystemAdmin` is true via System Console.
Reserved 2025-03-20 | Published 2025-05-15 | Updated 2025-05-15 | Assigner MattermostCWE-863: Incorrect Authorization
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mattermost.com/security-updates
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