CVE-2018-3821: Elastic Kibana

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Kibana versions after 5.1.1 and before 5.6.7 and 6.1.3 had a cross-site scripting (XSS) vulnerability in the tag cloud visualization that could allow an attacker to obtain sensitive information from or perform destructive actions on behalf of other Kibana users.

Affected products

• Elastic Kibana: after 5.1.1, before 5.6.7 (fixed in 5.6.7); from 6.0.0, before 6.1.3 (fixed in 6.1.3)

Published 2018-03-30. Last modified 2026-06-17.