wildfly is vulnerable to validation bypass. An XML validation manipulation vulnerability exists due to incomplete application of use-grammar-pool-only in xercesImpl.
access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/
access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/html-single/installation_guide/
access.redhat.com/errata/RHSA-2020:4245
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1860054
lists.apache.org/thread.html/rf96c5afb26b596b4b97883aa90b6c0b0fc4c26aaeea7123c21912103@%3Cj-users.xerces.apache.org%3E