CVE-2023-2808

Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost::::::::
	cpe:2.3:a:mattermost:mattermost::::::::
	cpe:2.3:a:mattermost:mattermost::::::::

History

05 Jun 2023, 16:33

Type	Values Removed	Values Added
References	~~(MISC) https://mattermost.com/security-updates/ -~~	(MISC) https://mattermost.com/security-updates/ - Vendor Advisory
CPE		cpe:2.3:a:mattermost:mattermost::::::::
CWE		NVD-CWE-noinfo
First Time		Mattermost Mattermost mattermost
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3

29 May 2023, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-05-29 10:15

Updated : 2023-12-10 15:01

NVD link : CVE-2023-2808

Mitre link : CVE-2023-2808

CVE.ORG link : CVE-2023-2808

JSON object : View

Products Affected

mattermost

mattermost

CWE

NVD-CWE-noinfo CWE-20

Improper Input Validation

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