CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NCVE-2025-47871
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 validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 10% 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-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost-server | <0.0.0-20250513065225-4ae5d647fb88 | 0.0.0-20250513065225-4ae5d647fb88 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250513065225-4ae5d647fb88 | 8.0.0-20250513065225-4ae5d647fb88 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | >=9.11.0 <9.11.16 | 9.11.16 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | >=10.5.0 <10.5.6 | 10.5.6 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | >=10.6.0 <10.6.6 | 10.6.6 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | >=10.7.0 <10.7.3 | 10.7.3 |
| GHSA-wgvp-jj4w-88hf | Go | github.com/mattermost/mattermost/server/v8 | >=10.8.0 <10.8.1 | 10.8.1 |
| GO-2025-3797 | 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-2025-3797 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-3797 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-3797 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250513065225-4ae5d647fb88 | 8.0.0-20250513065225-4ae5d647fb88 |