FOSSBilling: Low-privileged staff can read and modify configuration of deactivated extensions

{
                    "vendor": "FOSSBilling",
                    "product": "FOSSBilling",
                    "versions": [
                        {
                            "version": ">= 0.8.4, < 0.8.6",
                            "status": "affected"
                        }
                    ]
                }