CVE-2025-25274 Unauthorized Command Execution in Archived Channels

Medium 4.3 Published Updated

Authenticated users can execute commands in archived channels due to missing authorization checks, potentially leading to unauthorized code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-25274?

CVE-2025-25274 is a medium-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 21 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to restrict command execution in archived channels, which allows authenticated users to run commands in archived channels.

Weakness: CWE-77, CWE-863

Which versions are affected by CVE-2025-25274?

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

PackageAffectedFixed in
github.com/mattermost/mattermost/server/v8 GoAll versionsNone
github.com/mattermost/mattermost/server/v8 GoFrom 10.3.010.3.4
github.com/mattermost/mattermost/server/v8 GoFrom 10.3.010.3.4
github.com/mattermost/mattermost/server/v8 GoFrom 10.4.010.4.3
github.com/mattermost/mattermost/server/v8 GoFrom 10.4.010.4.3
github.com/mattermost/mattermost/server/v8 GoFrom 10.5.010.5.1
7 more packages
github.com/mattermost/mattermost/server/v8 GoFrom 10.5.010.5.1
github.com/mattermost/mattermost/server/v8 GoFrom 9.11.09.11.9
github.com/mattermost/mattermost/server/v8 GoFrom 9.11.09.11.9
mattermost BitnamiFrom 9.11.010.0.0, 10.5.1
github.com/mattermost/mattermost-server GoFrom 9.11.0+incompatible9.11.9+incompatible, 10.3.4+incompatible, 10.4.3+incompatible, 10.5.1+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-2025-25274?

Upgrade github.com/mattermost/mattermost/server/v8 to a fixed version for your release line: 10.3.4, 10.4.3, 10.5.1 or 9.11.9.

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

Is CVE-2025-25274 being exploited?

There is no known exploitation of CVE-2025-25274 in the wild and no public exploit code.

All Mattermost Mattermost Server vulnerabilities

Sources

Also known as BIT-mattermost-2025-25274, GHSA-4v65-xqcj-wpgg, GO-2025-3550.

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