SecuriTricks - CVE-2025-8023

Description

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.

Product(s) Impacted

Vendor	Product	Versions
Mattermost	Mattermost	10.8.0-10.8.3, 10.5.0-10.5.8, 9.11.0-9.11.17, 10.9.0-10.9.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mattermost	mattermost	10.8.0-10.8.3	/	/	/	/	/	/	/
a	mattermost	mattermost	10.5.0-10.5.8	/	/	/	/	/	/	/
a	mattermost	mattermost	9.11.0-9.11.17	/	/	/	/	/	/	/
a	mattermost	mattermost	10.9.0-10.9.2	/	/	/	/	/	/	/

References

https://mattermost.com/security-updates

CVSS Score

6.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: HIGH
Scope: CHANGED
Confidentiality Impact: HIGH
Integrity Impact: NONE
Availability Impact: NONE

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

View Vector String

Timeline

Published: Aug. 21, 2025, 8:15 a.m.
Last Modified: Aug. 21, 2025, 8:15 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

responsibledisclosure@mattermost.com

CVE-2025-8023