CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NCVE-2025-3227
Medium (4.3) in mattermost mattermost server. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost-server 0.0.0-20250520060012-d0380305ef7a, 10.5.6+incompatible, 10.6.6+incompatible.
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions in playbook runs, allowing authenticated users without the 'Manage Channel Members' permission to add or remove users from public and private channels by manipulating playbook run participants when the run is linked to a channel.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
- CWE
- CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost-server | <0.0.0-20250520060012-d0380305ef7a | 0.0.0-20250520060012-d0380305ef7a |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250520060012-d0380305ef7a | 8.0.0-20250520060012-d0380305ef7a |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | >=10.5.0 <10.5.6 | 10.5.6 |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | >=9.11.0 <9.11.16 | 9.11.16 |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | >=10.8.0 <10.8.1 | 10.8.1 |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | >=10.7.0 <10.7.3 | 10.7.3 |
| GHSA-qwwm-c582-82rx | Go | github.com/mattermost/mattermost/server/v8 | >=10.6.0 <10.6.6 | 10.6.6 |
| GO-2025-3772 | Go | github.com/mattermost/mattermost-server | <0.0.0-20250520060012-d0380305ef7a >=9.11.0+incompatible <9.11.16+incompatible >=10.5.0+incompatible <10.5.6+incompatible >=10.6.0+incompatible <10.6.6+incompatible >=10.7.0+incompatible <10.7.3+incompatible >=10.8.0+incompatible <10.8.1+incompatible | 0.0.0-20250520060012-d0380305ef7a, 9.11.16+incompatible, 10.5.6+incompatible, 10.6.6+incompatible, 10.7.3+incompatible, 10.8.1+incompatible |
| GO-2025-3772 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-3772 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-3772 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250520060012-d0380305ef7a | 8.0.0-20250520060012-d0380305ef7a |