SB2020061956 - Information disclosure in Mattermost, Mattermost Server
Published: June 19, 2020 Updated: August 8, 2020
Security Bulletin ID
SB2020061956
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2019-20890)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote authenticated user to gain access to sensitive information.
An issue was discovered in Mattermost Server before 5.7. It allows a bypass of e-mail address discovery restrictions.
Remediation
Install update from vendor's website.