CVE-2025-2570 System Admin Cannot Access Environment settings in System Console While System Manager Can

Low 2.7 Published Updated

A System Manager can bypass restrictions to access experimental settings in the System Console when the RestrictSystemAdmin setting is enabled.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-2570?

CVE-2025-2570 is a low-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 15 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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.

Weakness: CWE-863

Which versions are affected by CVE-2025-2570?

10 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server and github.com/mattermost/mattermost-server/v5. It affects 1 product.

PackageAffectedFixed in
github.com/mattermost/mattermost/server/v8 GoAll versions8.0.0-20250411064244-844447fbd57c
github.com/mattermost/mattermost/server/v8 GoAll versions8.0.0-20250411064244-844447fbd57c
github.com/mattermost/mattermost/server/v8 GoAll versions8.0.0-20250411064244-844447fbd57c
github.com/mattermost/mattermost/server/v8 GoFrom 10.5.010.5.3
github.com/mattermost/mattermost/server/v8 GoFrom 10.5.010.5.3
github.com/mattermost/mattermost/server/v8 GoFrom 9.11.09.11.12
4 more packages
github.com/mattermost/mattermost/server/v8 GoFrom 9.11.09.11.12
github.com/mattermost/mattermost-server GoFrom 9.11.0+incompatible9.11.12+incompatible, 10.5.3+incompatible
github.com/mattermost/mattermost-server/v5 GoAll versionsNone
github.com/mattermost/mattermost-server/v6 GoAll versionsNone

Products include Mattermost Mattermost Server.

How do I fix CVE-2025-2570?

Upgrade github.com/mattermost/mattermost/server/v8 to a fixed version for your release line: 8.0.0-20250411064244-844447fbd57c, 10.5.3 or 9.11.12.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-2570 being exploited?

There is no known exploitation of CVE-2025-2570 in the wild and no public exploit code.

All Mattermost Mattermost Server vulnerabilities

Sources

Also known as GHSA-fpff-wj6m-grvr, GO-2025-3694.

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