Kibana versions before 5.6.15 and 6.6.1 had a cross-site scripting (XSS) vulnerability that could allow an attacker to obtain sensitive information from or perform destructive actions on behalf of other Kibana users.Referenceshttps://discuss.elastic.co/t/elastic-stack-6-6-1-and-5-6-15-security-update/169077https://www.elastic.co/community/securityhttps://access.redhat.com/errata/RHSA-2019:2860https://access.redhat.com/errata/RHBA-2019:2824