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SCA: security update for github.com/mattermost/mattermost-server (GHSA-8qg8-c7mw-6fj7)

medium Tenable Cloud Security Plugin ID 436132

Description

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

 - An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files
 is used. A System Admin can achieve directory traversal. (CVE-2017-18874)

See Also

https://github.com/advisories/GHSA-8qg8-c7mw-6fj7

Plugin Details

Severity: Medium

ID: 436132

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 11/21/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.04

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2017-18874

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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: 5/24/2022

Vulnerability Publication Date: 6/19/2020

Reference Information

CVE: CVE-2017-18874

cwe: CWE-22