low3.1
CVE-2025-9081
Mattermost boards plugin fails to restrict download access to files
Impact
Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate access controls which allows any authenticated user to download sensitive files via board file download endpoint using UUID enumeration
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-plugin-boards | < 0.0.0-20250716054606-3f3e3becfe1d | 0.0.0-20250716054606-3f3e3becfe1d |
| go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250721095935-11c36f4d1e44 | 8.0.0-20250721095935-11c36f4d1e44 |
| go | github.com/mattermost/mattermost-server | >= 10.5.0-rc1, < 10.5.9 | 10.5.9 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Server | from 9.11.0 before 9.11.17 from 10.5.0 before 10.5.9 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://mattermost.com/security-updates
- https://github.com/advisories/GHSA-f72g-52v7-mg3p
- https://nvd.nist.gov/vuln/detail/CVE-2025-9081
- https://github.com/mattermost/mattermost-plugin-boards/pull/114
- https://github.com/mattermost/mattermost-plugin-boards/commit/3f3e3becfe1d66db0d0f4fd235f04afd6e1ec40b
- https://pkg.go.dev/vuln/GO-2025-3978