This indicates an attack attempt to exploit an Authentication Bypass vulnerability in e-commerce platform Magento.
The vulnerability is due to improper authentication of incoming request. A remote attacker may be able to exploit this to execute arbitrary code execution against the affected machine, via a crafted request.
Magento Magento 126.96.36.199 EE
Magento Magento 188.8.131.52 CE
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch for this issue