Description
Mattermost Server versions 10.5.x <= 10.5.9 utilizing the Agents plugin fail to reject empty request bodies which allows users to trick users into clicking malicious links via post actions
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mattermost | Mattermost | 10.5.0 – ≤ 10.5.8 | 10.10.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | >= 10.5.0, < 10.5.10 | 10.5.10 | GHSA-vqwh-5jhh-vc9p |
| Go | github.com/mattermost/mattermost-server | >= 10.5.0+incompatible, < 10.5.10+incompatible | 10.5.10+incompatible | GO-2025-3906 |
| Go | github.com/mattermost/mattermost-server/v5 | all versions | — | GO-2025-3906 |
| Go | github.com/mattermost/mattermost-server/v6 | all versions | — | GO-2025-3906 |
| Go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250814075248-83a37a861d3c | 8.0.0-20250814075248-83a37a861d3c | GHSA-vqwh-5jhh-vc9p |
Advisories 1
- WID-SEC-2025-1625 Mattermost Server und Plugins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 21, 2025