CVE-2023-4478

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server:8.0.0:::::::*

History

31 Aug 2023, 17:44

Type	Values Removed	Values Added
CWE		CWE-74
CPE		cpe:2.3:a:mattermost:mattermost_server:::::::: cpe:2.3:a:mattermost:mattermost_server:8.0.0:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.2
References	~~(MISC) https://mattermost.com/security-updates -~~	(MISC) https://mattermost.com/security-updates - Vendor Advisory
First Time		Mattermost Mattermost mattermost Server

25 Aug 2023, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-08-25 10:15

Updated : 2023-12-10 15:14

NVD link : CVE-2023-4478

Mitre link : CVE-2023-4478

CVE.ORG link : CVE-2023-4478

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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