An issue in openCRX v.5.2.2 allows a remote attacker to read internal files and execute server side request forgery attack via insecure DocumentBuilderFactory.
https://github.com/opencrx/opencrx/commit/ce7a71db0bb34ecbcb0e822d40598e410a48b399
https://gist.github.com/spookhorror/9519fc66d3946e887e4a86c06ddbee0e