An issue was discovered in SageMath Sage Cell Server through 2019-10-05. Python Code Injection can occur in the context of an internet facing web application. Malicious actors can execute arbitrary commands on the underlying operating system, as demonstrated by an __import__(\'os\').popen(\'whoami\').read() line. NOTE: the vendor\'s position is that the product is "vulnerable by design" and the current behavior will be retained