In Kibana versions before 6.8.11 and 7.8.1 the region map visualization in contains a stored XSS flaw. An attacker who is able to edit or create a region map visualization could obtain sensitive information or perform destructive actions on behalf of Kibana users who view the region map visualization.
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.elastic.co/community/security/
https://discuss.elastic.co/t/elastic-stack-6-8-11-and-7-8-1-security-update/242786