CVE-2025-4981

critical · 9.9

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.

9.9

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2025-06-20

Published

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

Weaknesses

CWE-427

Affected products

Vendor	Product	Affected versions
mattermost	mattermost_server	>= 9.11.0, < 9.11.16
mattermost	mattermost_server	>= 10.5.0, < 10.5.6
mattermost	mattermost_server	>= 10.6.0, < 10.6.6
mattermost	mattermost_server	>= 10.7.0, < 10.7.3
mattermost	mattermost_server	10.8.0
mattermost	mattermost_server	10.8.0
mattermost	mattermost_server	10.8.0
mattermost	mattermost_server	10.8.0

Check a specific version with /api/v1/cve/match.

References

https://mattermost.com/security-updates

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-4981