It has been reported that KIE server and Busitess Central before version 7.21.0.Final contain username and password as plaintext Java properties. Any app deployed on the same server would have access to these properties, thus granting access to ther services.
Exploitability
AV:NAC:HPR:NUI:NScope
S:UImpact
C:HI:NA:N5.9/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NOther