CVE-2025-4981 - CVE House
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Status published Critical CVE-2025-4981

Path Traversal Leading to RCE by Any Authenticated Mattermost User

Vulnerability Description

Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to sanitize filenames in the archive extractor which allows authenticated users to write files to arbitrary locations on the filesystem via uploading archives with path traversal sequences in filenames, potentially leading to remote code execution. The vulnerability impacts instances where file uploads and document search by content is enabled (FileSettings.EnableFileAttachments = true and FileSettings.ExtractContent = true). These configuration settings are enabled by default.

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

Affected Software

Mattermost
Vulnerable Versions:
10.5.0, 9.11.0, 10.8.0, 10.7.0, 10.6.0, 10.9.0, 10.5.6, 9.11.16, 10.8.1, 10.7.3, 10.6.6

Timeline

Official Publish: June 20th, 2025
Last Modified: June 20th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-427

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow
Persistence
T1574.001 DLL Search Order Hijacking
Privilege Escalation
T1547 Boot or Logon Autostart Execution
Persistence
T1036 Masquerading
Defense Evasion
T1059 Command and Scripting Interpreter
Execution