Vulnerabilities > Mattermost > Mattermost Server > 5.28.2
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-12-17 | CVE-2021-37862 | Improper Check for Unusual or Exceptional Conditions vulnerability in Mattermost Server Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token. | 5.8 |
| 2021-12-17 | CVE-2021-37863 | Improper Input Validation vulnerability in Mattermost Server Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post. | 3.5 |