CVE-2025-4981

Path Traversal Leading to RCE by Any Authenticated Mattermost User

State: Published
Severity: 9.9 Critical
Published: Jun 20, 2025
Updated: Jun 20, 2025
Reserved: May 20, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	9.9 Critical	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	Mattermost

Weaknesses

CWE-427 Uncontrolled Search Path Element

Affected Products

Product	Versions
MattermostMattermost	10.5.0 through 10.5.5Affected 9.11.0 through 9.11.15Affected 10.8.0 through 10.8.0Affected 10.7.0 through 10.7.2Affected 10.6.0 through 10.6.5Affected 10.9.0Not affected 10.5.6Not affected 9.11.16Not affected 10.8.1Not affected 10.7.3Not affected 10.6.6Not affected

References

https://mattermost.com/security-updates

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