AUGUST 4, 2026
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Case File

CVE-2023-4478

MEDIUM · CVSS 4.3 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-08-25 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. See the original NVD description below for full technical details.

CVE
CVE-2023-4478
Severity
MEDIUM
CVSS
4.3
EPSS
0.44%

Original NVD Description

Mattermost fails to restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts.

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