CVE-2025-53971

unknown

Published 2025-08-21 · Modified 2026-03-03

CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS v2

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VIR risk

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Description

Mattermost Fails to Properly Validate Team Role Modification in github.com/mattermost/mattermost-server

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/mattermost/mattermost-server	`>=10.5.0,<10.5.9`	`10.5.9`
Go	github.com/mattermost/mattermost-server	`>=9.11.0,<9.11.18`	`9.11.18`
Go	github.com/mattermost/mattermost/server/v8	`<8.0.0-20250721095846-c602a4a78e1f`	`8.0.0-20250721095846-c602a4a78e1f`
Go	github.com/mattermost/mattermost-server/v5	`<=5.39.3`
Go	github.com/mattermost/mattermost-server/v6	`<=6.7.2`
Go	github.com/mattermost/mattermost-server	`>=10.5.0+incompatible,<10.5.9+incompatible`	`9.11.18+incompatible`
Go	github.com/mattermost/mattermost-server/v5
Go	github.com/mattermost/mattermost-server/v6

References

Verify integrity in audit chain (admin only). AS-IS.