Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server/v6, github.com/mattermost/mattermost/server/v8 (GHSA-c37r-v8jx-7cv2)

high Tenable Cloud Security Plugin ID 413609

Description

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

 - Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost
 Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by
 patching the field of a block using a specially crafted string. (CVE-2023-40703)

See Also

https://github.com/advisories/GHSA-c37r-v8jx-7cv2

Plugin Details

Severity: High

ID: 413609

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-40703

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/27/2023

Vulnerability Publication Date: 11/27/2023

Reference Information

CVE: CVE-2023-40703

cwe: CWE-400