CVE-2025-20051
Critical
Description
Mattermost versions 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 properly validate input when patching and duplicating a board, which allows a user to read any arbitrary file on the system via duplicating a specially crafted block in Boards.
SeverityCritical
CVSS9.9
Exploit probability49. percentile0.6%
Product
Mattermost Server
PublishedFeb 24, 2025
First seenFeb 24, 2025
Weakness typeCWE-22Path traversal
How to fix
Update
- mattermost mattermost_server9.11.8, 10.2.3, 10.3.3, 10.4.2 or later
- github.com/mattermost/mattermost/server/v88.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, 10.4.2 or later
- github.com/mattermost/mattermost-server9.11.8+incompatible, 10.2.3+incompatible, 10.3.3+incompatible, 10.4.2+incompatible or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.8, 10.2.0 ≤ v < 10.2.3, 10.3.0 ≤ v < 10.3.3, 10.4.0 ≤ v < 10.4.2 | 9.11.8, 10.2.3, 10.3.3, 10.4.2 |
| github.com/mattermost/mattermost/server/v8Go | v < 8.0.0-20250122165010-4ed702ccff4e, 9.11.0-rc1 ≤ v < 9.11.8, 10.2.0-rc1 ≤ v < 10.2.3, 10.3.0-rc1 ≤ v < 10.3.3, 10.4.0-rc1 ≤ v < 10.4.2 | 8.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, 10.4.2 |
| github.com/mattermost/mattermost-serverGo | 9.11.0-rc1+incompatible ≤ v < 9.11.8+incompatible, 10.2.0-rc1+incompatible ≤ v < 10.2.3+incompatible, 10.3.0-rc1+incompatible ≤ v < 10.3.3+incompatible, 10.4.0-rc1+incompatible ≤ v < 10.4.2+incompatible | 9.11.8+incompatible, 10.2.3+incompatible, 10.3.3+incompatible, 10.4.2+incompatible |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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