awesto django-shop Purchase Stock inventory.py race condition

A vulnerability was identified in awesto django-shop up to 1.2.4. Affected is an unknown function of the file shop/models/inventory.py of the component Purchase Stock Handler. The manipulation leads to race condition. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is told to be difficult. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.