XXE vulnerability in Jenkins REPO Plugin

REPO Plugin 1.15.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control which repo binary is executed on agents to have Jenkins parse a crafted XML document that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

REPO Plugin 1.16.0 disables external entity resolution for its XML parser.