Grafana -- Privilege escalation

Grafana Labs reports:

Grafana admins can invite other members to the organization they are
an admin for. When admins add members to the organization, non existing users
get an email invite, existing members are added directly to the organization.
When an invite link is sent, it allows users to sign up with whatever
username/email address the user chooses and become a member of the organization.

The CVSS score for this vulnerability is 6.4 Moderate