CVE-2017-18381
The installation process in Open edX before 2017-01-10 exposes a MongoDB instance to external connections with default credentials.
Date published : 2019-07-30
https://groups.google.com/forum/#%21topic/openedx-announce/jRXyo1HJzNk
https://groups.google.com/forum/#%21topic/openedx-announce/mpyyx34LWSY