GHSA-CQG4-RF29-3MV6 Trytond allows modification of privileges of arbitrary users

model/modelstorage.py in the Tryton application framework trytond before 2.4.0 for Python does not properly restrict access to the Many2Many field in the relation model, which allows remote authenticated users to modify the privileges of arbitrary users via a 1 create, 2 write, 3 delete, or 4 cop...