Scala : XPath injection

The application executes XPath query built on the basis of data from an untrusted source. An attacker can change the meaning of the executed expression or execute arbitrary query.

A possible attack scenario:

1. The application receives input data from an untrusted source.
2. This data is used to dynamically create XPath query.
3. An attacker get an opportunity to influence the semantics of the query or execute his/her own queries.