Incorrect permission assignment for critical resource in Mattermost Server - CVE-2019-20869
Published: June 19, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30243
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20869
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mattermost, Inc.
Affected software:
Mattermost Server
Mattermost Server
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
An issue was discovered in Mattermost Server before 5.10.0, 5.9.1, 5.8.2, and 4.10.9. A non-member could change the Update/Patch Channel endpoint for a private channel.
How to mitigate CVE-2019-20869
Install update from vendor's website.