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Status published
Medium
CVE-2025-6233
Arbitrary file read by system admin via path traversal
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Dawid Kulikowski (daw10)
References
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Affected Vendor
Mattermost
View all reports →Affected Software
Mattermost
Vulnerable Versions:
10.8.0, 10.7.0, 10.5.0, 9.11.0, 10.9.0, 10.8.2, 10.7.4, 10.5.8, 9.11.17
Timeline
Official Publish:
July 18th, 2025
Last Modified:
July 18th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N