Path Traversal Vulnerability in Mattermost by Mattermost Inc.
CVE-2025-6233

6.8MEDIUM

Key Information:

Vendor

Mattermost
Status
Mattermost
Vendor
CVE Published:
18 July 2025

What is CVE-2025-6233?

Mattermost versions 10.8.x through 10.8.1, 10.7.x through 10.7.3, 10.5.x through 10.5.7, and 9.11.x through 9.11.16 exhibit a vulnerability that allows a system administrator to exploit unsanitized input paths during file attachments in bulk import JSONL files. This can result in unauthorized access to arbitrary system files, posing significant risks to data security and system integrity.

Affected Version(s)

Mattermost 10.8.0 <= 10.8.1

Mattermost 10.7.0 <= 10.7.3

Mattermost 10.5.0 <= 10.5.7

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dawid Kulikowski (daw10)
.
CVE-2025-6233 : Path Traversal Vulnerability in Mattermost by Mattermost Inc.