Information disclosure in Mattermost Server - CVE-2019-20877
Published: June 19, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30234
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-20877
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows attackers to obtain sensitive information about whether someone has 2FA enabled.
Affected software
Mattermost Server
How to mitigate CVE-2019-20877
Install update from vendor's website.
Mattermost Server - update to 5.8.1