AUGUST 4, 2026
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Case File

CVE-2021-37863

LOW · CVSS 3.5 EPSS 0.83%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-17 · Last synced 2026-08-04

CyberRota Analysis

This is a low severity vulnerability with a CVSS score of 3.5. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-37863
Severity
LOW
CVSS
3.5
EPSS
0.83%

Original NVD Description

Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.

Related CVEs

Other vulnerabilities affecting the same vendor(s)