An XXE issue was discovered in Automated Logic Corporation (ALC) WebCTRL Versions 6.0, 6.1 and 6.5. An unauthenticated attacker could enter malicious input to WebCTRL and a weakly configured XML parser will allow the application to disclose full file contents from the underlying web server OS via the "X-Wap-Profile" HTTP header.
https://hateshape.github.io/general/2018/06/07/CVE-2018-8819.html
http://seclists.org/fulldisclosure/2018/Jun/21
http://packetstormsecurity.com/files/148126/WebCTRL-Out-Of-Band-XML-Injection.html