CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NCVE-2025-46702
Medium (5.4) in mattermost mattermost server. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost-server 0.0.0-20250513065225-4ae5d647fb88, 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 when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% 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-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost-server | <0.0.0-20250513065225-4ae5d647fb88 | 0.0.0-20250513065225-4ae5d647fb88 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250513065225-4ae5d647fb88 | 8.0.0-20250513065225-4ae5d647fb88 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | >=9.11.0 <9.11.16 | 9.11.16 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | >=10.5.0 <10.5.6 | 10.5.6 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | >=10.6.0 <10.6.6 | 10.6.6 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | >=10.7.0 <10.7.3 | 10.7.3 |
| GHSA-v8fr-vxmw-6mf6 | Go | github.com/mattermost/mattermost/server/v8 | >=10.8.0 <10.8.1 | 10.8.1 |
| GO-2025-3796 | Go | github.com/mattermost/mattermost-server | <0.0.0-20250513065225-4ae5d647fb88 >=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 | 0.0.0-20250513065225-4ae5d647fb88, 9.11.16+incompatible, 10.5.6+incompatible, 10.6.6+incompatible, 10.7.3+incompatible, 10.8.1+incompatible |
| GO-2025-3796 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-3796 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-3796 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250513065225-4ae5d647fb88 | 8.0.0-20250513065225-4ae5d647fb88 |