Galette has groups managers access control bypass on Members

Galette is a membership management web application for non profit organizations. Starting in version 0.9.6 and prior to version 1.2.0, attackers with group manager role can bypass intended restrictions allowing unauthorized access and changes despite role-based controls. Since it requires privileged access initially, exploitation is restricted to malicious insiders or compromised group managers accounts. Version 1.2.0 fixes the issue.