XML external entity (XXE) vulnerability in the Apache XML-RPC (aka ws-xmlrpc) library 3.1.3, as used in Apache Archiva, allows remote attackers to conduct server-side request forgery (SSRF) attacks via a crafted DTD.
https://security.gentoo.org/glsa/202401-26
https://exchange.xforce.ibmcloud.com/vulnerabilities/115042
https://access.redhat.com/errata/RHSA-2018:3768
https://0ang3el.blogspot.in/2016/07/beware-of-ws-xmlrpc-library-in-your.html
http://www.securitytracker.com/id/1036294