Misconfigured kibana/elasticsearch applications can cause many private data to be leaked by attackers.
Kibana performs the visualization process after analyzing the collected and meaningful data.
Elasticsearch is a search Engine that enables us to perform operations such as analysis of data collected through external applications and content search.
Attackers can use your misconfigured kibana/elasticsearch application by impersonating you and access your private data.
If you have an kibana/elasticsearch application that doesn't have any authentication mechanism, set an authentication mechanism immediately.