It was discovered that the XmlUtils class in jbpmmigration performed expansion of external parameter entities while parsing XML files. A remote attacker could use this flaw to read files accessible to the user running the application server and, potentially, perform other more advanced XML eXternal Entity (XXE) attacks.
The related jbpm-designer project removed use of jbpmmigration completely as a result.
access.redhat.com/errata/RHSA-2017:3354
access.redhat.com/errata/RHSA-2017:3355
bugzilla.redhat.com/show_bug.cgi?id=1474822
bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7545
github.com/kiegroup/jbpm-designer/commit/a143f3b92a6a5a527d929d68c02a0c5d914ab81d
github.com/kiegroup/jbpmmigration
nvd.nist.gov/vuln/detail/CVE-2017-7545