tocsin

CVE-2025-27933

6 advisories.

Go/github.com/mattermost/mattermost/server/v8 CVE-2025-27933: medium 5.4, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public

Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250218135018-e644e3c8e393 or later.

go get github.com/mattermost/mattermost/server/v8@v10.4.3
go get github.com/mattermost/mattermost/server/v8@v10.3.4
go get github.com/mattermost/mattermost/server/v8@v9.11.9
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250218135018-e644e3c8e393

Affected

introducedfixedlast affected
10.4.010.4.3-
10.3.010.3.4-
9.11.09.11.9-
08.0.0-20250218135018-e644e3c8e393-

Fixed versions

10.4.310.3.49.11.98.0.0-20250218135018-e644e3c8e393

Sources

CVE-2025-27933 · published · modified · JSON

Go/github.com/mattermost/mattermost-server CVE-2025-27933: medium 5.4, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public

Action: Upgrade github.com/mattermost/mattermost-server to 9.11.9 or later.

go get github.com/mattermost/mattermost-server@v9.11.9

Affected

introducedfixedlast affected
09.11.9-

Fixed versions

9.11.9

Sources

CVE-2025-27933 · published · modified · JSON

Go/github.com/mattermost/mattermost-server CVE-2025-27933: unknown, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-server

Action: Upgrade github.com/mattermost/mattermost-server to 9.11.9+incompatible or later.

go get github.com/mattermost/mattermost-server@v9.11.9+incompatible
go get github.com/mattermost/mattermost-server@v10.3.4+incompatible
go get github.com/mattermost/mattermost-server@v10.4.3+incompatible

Affected

introducedfixedlast affected
9.11.0+incompatible9.11.9+incompatible-
10.3.0+incompatible10.3.4+incompatible-
10.4.0+incompatible10.4.3+incompatible-

Fixed versions

9.11.9+incompatible10.3.4+incompatible10.4.3+incompatible

Sources

CVE-2025-27933 · published · modified · JSON

Go/github.com/mattermost/mattermost-server/v5 CVE-2025-27933: unknown, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-server

Action: No fix published. Pin and monitor.

Affected

introducedfixedlast affected
0--

Fixed versions

No fixed version in the source.

Sources

CVE-2025-27933 · published · modified · JSON

Go/github.com/mattermost/mattermost-server/v6 CVE-2025-27933: unknown, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-server

Action: No fix published. Pin and monitor.

Affected

introducedfixedlast affected
0--

Fixed versions

No fixed version in the source.

Sources

CVE-2025-27933 · published · modified · JSON

Go/github.com/mattermost/mattermost/server/v8 CVE-2025-27933: unknown, EPSS 0.21%

Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-server

Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250218135018-e644e3c8e393 or later.

go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250218135018-e644e3c8e393

Affected

introducedfixedlast affected
08.0.0-20250218135018-e644e3c8e393-

Fixed versions

8.0.0-20250218135018-e644e3c8e393

Sources

CVE-2025-27933 · published · modified · JSON