A flaw was found in the BPMN editor in version jBPM 7.51.0.Final. Any authenticated user from any project can see the name of Ruleflow Groups from other projects, despite the user not having access to those projects. The highest threat from this vulnerability is to confidentiality.

An XXE flaw was found in the jBPM runtime while executing BPMN2 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 XXE attacks.

Gregory Draperi reports:

A cross-site scripting flaw has been reported in jBPM. The flaw allows remote authenticated attackers to store arbitrary script code in certain jBPM workbench fields, the script could be executed later in the context of other users while browsing through several workbench pages.