Description
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to validate import directory path configuration which allows admin users to execute arbitrary code via malicious plugin upload to prepackaged plugins directory
References (1)
Core 1
Core References
Vendor Advisory
https://mattermost.com/security-updates
Scores
CVSS v3
8.0
EPSS
0.0005
EPSS Percentile
16.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-22
Status
published
Products (3)
mattermost/mattermost
0 - 8.0.0-20250707221302-a8fa77f107efGo
mattermost/mattermost-server
10.8.0 - 10.8.4Go
mattermost/mattermost_server
9.11.0 - 9.11.18
Published
Sep 19, 2025
Tracked Since
Feb 18, 2026