SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-pj6f-rc94-gw53)

medium Tenable Self-Hosted Container Security Plugin ID 435053

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to
sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails
via path traversal in file streaming APIs. (CVE-2025-6465)

See Also

https://github.com/advisories/GHSA-pj6f-rc94-gw53

Plugin Details

Severity: Medium

ID: 435053

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 8/22/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS Score Source: CVE-2025-6465

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/21/2025

Vulnerability Publication Date: 8/21/2025

Reference Information

CVE: CVE-2025-6465

cwe: CWE-22