CVE-2025-6233 – Mattermost File Attachment Path Traversal Vulnerability

The following table lists the changes that have been made to the
CVE-2025-6233 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 18, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
    Added CWE CWE-22
    Added Reference https://mattermost.com/security-updates
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