CVE-2023-4478 MEDIUM

CVE-2023-4478: Parameter tampering in the registration resulting in blocked accounts to be created

Vendor Mattermost
Product Mattermost
Weakness CWE-74
Published August 25, 2023
Last update September 30, 2024

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 25, 2023 CVE published
September 30, 2024 Record updated