CVE-2021-37863 Information

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.

CVSS Vector

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

Reference

https://hackerone.com/reports/1253732 https://mattermost.com/security-updates/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.7