What’s Vulnerable › Vulnerabilities
CVE-2024-8071: System Role with edit access to permissions can elevate themselves to system admin
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-08-22 · updated 2026-06-17
- Weakness: CWE-284
Description
Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to restrict which roles can promote a user as system admin which allows a System Role with edit access to the permissions section of system console to update their role (e.g. member) to include the `manage_system` permission, effectively becoming a System Admin.
Affected products
- Mattermost App Framework: from 9.5.0 before 9.5.8; from 9.8.0 before 9.8.3; from 9.9.0 before 9.9.2; from 9.10.0 before 9.10.1 — fixed in 9.10.1, 9.5.8, 9.8.3, 9.9.2
How to fix
Upgrade to a fixed version: Mattermost App Framework 9.10.1, 9.5.8, 9.8.3, 9.9.2. Check the vendor advisory for mitigations.
References
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