AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-40703

MEDIUM · CVSS 4.3 EPSS 0.72%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-11-27 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It may lead to a denial-of-service condition.

CVE
CVE-2023-40703
Severity
MEDIUM
CVSS
4.3
EPSS
0.72%

Original NVD Description

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. 

Related CVEs

Other vulnerabilities affecting the same vendor(s)