Vulnerability DatabaseCVE-2025-8023
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2025-8023
August 21, 2025
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories.
Affected Packages
github.com/mattermost/mattermost/server/v8 (GO):
Affected version(s) >=v8.0.0-20230429093631-aac4f2337933 <v8.0.0-20250708065844-b38e2eccda18
Fix Suggestion:
Update to version v8.0.0-20250708065844-b38e2eccda18
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.5.0 <v10.5.9
Fix Suggestion:
Update to version v10.5.9
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.8.0 <v10.8.4
Fix Suggestion:
Update to version v10.8.4
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.8.0 <v10.8.4
Fix Suggestion:
Update to version v10.8.4
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.9.0 <v10.9.3
Fix Suggestion:
Update to version v10.9.3
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.5.0 <v10.5.9
Fix Suggestion:
Update to version v10.5.9
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v9.11.0 <v9.11.18
Fix Suggestion:
Update to version v9.11.18
github.com/mattermost/mattermost (GO):
Affected version(s) >=v9.11.0 <v9.11.18
Fix Suggestion:
Update to version v9.11.18
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.9.0 <v10.9.3
Fix Suggestion:
Update to version v10.9.3
Related Resources (5)
https://pkg.go.dev/vuln/GO-2025-3907
https://github.com/advisories/GHSA-x67c-v8jr-p29r
https://github.com/mattermost/mattermost
https://mattermost.com/security-updates
https://nvd.nist.gov/vuln/detail/CVE-2025-8023
Do you need more information?
Contact Us
CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22
EPSS
Base Score:
0.06