Incorrect permission assignment for critical resource in Mattermost Server - CVE-2019-20883
Published: June 19, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34224
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-20883
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to manipulate data.
An issue was discovered in Mattermost Server before 5.8.0, when Town Square is set to Read-Only. Users can pin or unpin a post.
Affected software
Mattermost Server
How to mitigate CVE-2019-20883
Install update from vendor's website.
Mattermost Server - update to 5.8.0