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SCA: security update for github.com/mattermost/mattermost-server (GHSA-9rr5-q43r-ccv4)

medium Tenable Cloud Security Plugin ID 436253

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 create arbitrary files. (CVE-2017-18875)

See Also

https://github.com/advisories/GHSA-9rr5-q43r-ccv4

Plugin Details

Severity: Medium

ID: 436253

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 12/4/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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-2017-18875

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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-2017-18875

cwe: CWE-22