CVE-2025-13870
Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to
- CVSS 3.1
- 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)
- CWE
- CWE-306
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-58w6-w55x-6wq8 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250905150616-ba86dfc5876b | 8.0.0-20250905150616-ba86dfc5876b |
| GHSA-58w6-w55x-6wq8 | Go | github.com/mattermost/mattermost | >=10.11.0 <10.11.5 | 10.11.5 |
| GHSA-58w6-w55x-6wq8 | Go | github.com/mattermost/mattermost | >=10.5.0 <10.5.13 | 10.5.13 |
| GO-2025-4178 | Go | github.com/mattermost/mattermost | >=10.5.0+incompatible <10.5.13+incompatible >=10.11.0+incompatible <10.11.5+incompatible | 10.5.13+incompatible, 10.11.5+incompatible |
| GO-2025-4178 | Go | github.com/mattermost/mattermost-server | all versions | no fix published |
| GO-2025-4178 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-4178 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-4178 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20251212204551-54f2e9b4afd5 | 8.0.0-20251212204551-54f2e9b4afd5 |