Vulnerabilities > CVE-2019-20844 - Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability in Mattermost Server
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.