Vulnerability · Published Feb 24, 2025 · Assigned by Mattermost
CVE-2025-24526Channel export permitted on archived channel when viewing archived channels is disabled
Medium 4.3
In plain English
A medium-severity incorrect authorization in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mattermost versions 10.1.x <= 10.1.3, 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to restrict channel export of archived channels when the "Allow users to view archived channels" is disabled which allows a user to export channel contents when they shouldn't have access to it
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 10.2.3+incompatible, 10.3.3+incompatible, 10.4.2+incompatible, 9.11.8+incompatible | GO-2025-3481 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3481 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3481 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.3.3 | GHSA-q8p2-2hwc-jw64 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.4.2 | GHSA-q8p2-2hwc-jw64 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250110161910-96195f1bd746 | GHSA-q8p2-2hwc-jw64 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250110161910-96195f1bd746 | GO-2025-3481 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.11.8 | GHSA-q8p2-2hwc-jw64 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.2.3 | GHSA-q8p2-2hwc-jw64 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.1.0 – through 10.1.310.4.0 – through 10.4.19.11.0 – through 9.11.710.3.0 – through 10.3.210.2.0 – through 10.2.2 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N