UpHeron
All vulnerabilities

Servers and applications

CVE-2021-37862

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.

Severity
Medium 5.4
Published
17 Dec 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version up to 6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-37862
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-37862