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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
History
Fri, 05 Dec 2025 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
|
Tue, 02 Dec 2025 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost Mattermost mattermost Boards |
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| Vendors & Products |
Mattermost
Mattermost mattermost Mattermost mattermost Boards |
Mon, 01 Dec 2025 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 01 Dec 2025 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Insecure Direct Object Reference in Mattermost Boards Plugin Enables Unauthorised Comment Deletion | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: Mattermost
Published: 2025-12-01T19:51:46.289Z
Updated: 2025-12-01T20:02:24.869Z
Reserved: 2025-11-05T15:23:20.065Z
Link: CVE-2025-12756
Updated: 2025-12-01T20:02:15.643Z
Status : Analyzed
Published: 2025-12-01T20:15:49.147
Modified: 2025-12-05T15:26:22.237
Link: CVE-2025-12756
No data.