In Apache Druid 0.22.1 and earlier, certain specially-crafted links result in unescaped URL parameters being sent back in HTML responses. This makes it possible to execute reflected XSS attacks.
https://github.com/advisories/GHSA-8rmv-98m4-g5c6
https://lists.apache.org/thread/lh2kcl4j45q7xj4w6rqf6kwf0mvyp2o6