CVE-2025-6233
Medium
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.
SeverityMedium
CVSS6.8
Exploit probability—
Product
Mattermost Server
PublishedJul 18, 2025
First seenJul 18, 2025
Weakness typeCWE-22Path traversal
How to fix
Update
- mattermost mattermost_server9.11.17, 10.5.8, 10.7.4, 10.8.2 or later
- github.com/mattermost/mattermost-server10.8.2, 10.7.4, 10.5.8, 9.11.17, 9.11.17+incompatible, 10.5.8+incompatible, 10.7.4+incompatible, 10.8.2+incompatible or later
- github.com/mattermost/mattermost/server/v88.0.0-20250529054450-d38c27f96fcf or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.17, 10.5.0 ≤ v < 10.5.8, 10.7.0 ≤ v < 10.7.4, 10.8.0 ≤ v < 10.8.2 | 9.11.17, 10.5.8, 10.7.4, 10.8.2 |
| github.com/mattermost/mattermost-serverGo | 10.8.0 ≤ v < 10.8.2, 10.7.0 ≤ v < 10.7.4, 10.5.0 ≤ v < 10.5.8, 9.11.0 ≤ v < 9.11.17, 9.11.0+incompatible ≤ v < 9.11.17+incompatible, 10.5.0+incompatible ≤ v < 10.5.8+incompatible, 10.7.0+incompatible ≤ v < 10.7.4+incompatible, 10.8.0+incompatible ≤ v < 10.8.2+incompatible | 10.8.2, 10.7.4, 10.5.8, 9.11.17, 9.11.17+incompatible, 10.5.8+incompatible, 10.7.4+incompatible, 10.8.2+incompatible |
| github.com/mattermost/mattermost/server/v8Go | v < 8.0.0-20250529054450-d38c27f96fcf | 8.0.0-20250529054450-d38c27f96fcf |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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