Information disclosure in Mattermost Server - CVE-2017-18887
Published: June 19, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30199
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-2017-18887
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 4.3.0, 4.2.1, and 4.1.2. It discloses the team creator's e-mail address to members.
Affected software
Mattermost Server
How to mitigate CVE-2017-18887
Install update from vendor's website.
Mattermost Server - update to 4.2.1