CVE-2025-6233 json
Arbitrary file read by system admin via path traversal
published 2025-07-18 15 mo ago modified 2026-06-17 4 mo ago also GHSA-wvw2-3jh4-4c39 , GO-2025-3820 , EUVD-2025-21866
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/mattermost/mattermost-server 9.11.17, 9.11.17+incompatible, 10.5.8, 10.5.8+incompatible, 10.7.4, 10.7.4+incompatible, 10.8.2, 10.8.2+incompatible
- go github.com/mattermost/mattermost/server/v8 8.0.0-20250529054450-d38c27f96fcf
- Mattermost Mattermost 9.11.17, 10.5.8, 10.7.4, 10.8.2, 10.9.0
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250730T213748-1.1
opensuse advisories openSUSE-SU-2025:15405-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | >=10.8.0, <10.8.2 >=10.7.0, <10.7.4 >=10.5.0, <10.5.8 >=9.11.0, <9.11.17 >=9.11.0+incompatible, <9.11.17+incompatible >=10.5.0+incompatible, <10.5.8+incompatible >=10.7.0+incompatible, <10.7.4+incompatible >=10.8.0+incompatible, <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 |
| go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250529054450-d38c27f96fcf |
8.0.0-20250529054450-d38c27f96fcf |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v6 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
Sources
- CVE List CVE-2025-6233
- GitHub Advisory GHSA-wvw2-3jh4-4c39
- NVD CVE-2025-6233
- OSV GO-2025-3820
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.