Vulnerability · Published Jul 18, 2025 · Assigned by Mattermost
CVE-2025-6233Arbitrary file read by system admin via path traversal
Medium 6.8
In plain English
A medium-severity path traversal 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 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.4%top 61.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost versions 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to sanitize input paths of file attachments in the bulk import JSONL file, which allows a system admin to read arbitrary system files via path traversal.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 9.11.17 | GHSA-wvw2-3jh4-4c39 |
| Go | github.com/mattermost/mattermost-server | 10.8.2 | GHSA-wvw2-3jh4-4c39 |
| Go | github.com/mattermost/mattermost-server | 10.5.8 | GHSA-wvw2-3jh4-4c39 |
| Go | github.com/mattermost/mattermost-server | 10.7.4 | GHSA-wvw2-3jh4-4c39 |
| Go | github.com/mattermost/mattermost-server | 10.5.8+incompatible, 10.7.4+incompatible, 10.8.2+incompatible, 9.11.17+incompatible | GO-2025-3820 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3820 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3820 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250529054450-d38c27f96fcf | GO-2025-3820 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250529054450-d38c27f96fcf | GHSA-wvw2-3jh4-4c39 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.8.0 – through 10.8.110.7.0 – through 10.7.310.5.0 – through 10.5.79.11.0 – through 9.11.16 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N