GHSA-7G3P-35VC-MGJR Cotonti: Cross-Site Request Forgery in the administration rights handler

Cotonti 1.0.0 master branch, commit f43f1fc3 is vulnerable to Cross-Site Request Forgery in the administration rights handler. In system/admin/admin.rights.php, the rights update action 'a=update' modifies group access rights including via cotauthaddgroup without calling cotcheckxg to validate th...