CVE-2025-12756
Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users.
- CVSS 3.1
- 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)
- CWE
- CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p6gj-jc38-x2m7 | Go | github.com/mattermost/mattermost/server/v8 | <=8.0.0-20251013062617-7977e7e6dae3 | no fix published |
| GHSA-p6gj-jc38-x2m7 | Go | github.com/mattermost/mattermost | >=10.11.0 <=10.11.4 | no fix published |
| GHSA-p6gj-jc38-x2m7 | Go | github.com/mattermost/mattermost | >=10.12.0 <=10.12.1 | no fix published |
| GHSA-p6gj-jc38-x2m7 | Go | github.com/mattermost/mattermost | >=10.5.0 <=10.5.12 | no fix published |
| GHSA-p6gj-jc38-x2m7 | Go | github.com/mattermost/mattermost | >=11.0.0 <=11.0.2 | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost | all versions | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost | >=10.5.0+incompatible | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost | >=10.11.0+incompatible | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost | >=10.12.0+incompatible | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost-server | all versions | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-4172 | Go | github.com/mattermost/mattermost/server/v8 | all versions | no fix published |