aiyiyi121 SxDevOps UserSerializer serializers.py update privileges management

A vulnerability was determined in aiyiyi121 SxDevOps 1.0/1.1. This affects the function update of the file backend/rbac/serializers.py of the component UserSerializer. Executing a manipulation can lead to improper privilege management. The attack can be executed remotely. This patch is called 2b4bf8585c3e731e7a8af30801ea46680bc783f9. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.