Jira Server and Data Center is susceptible to information disclosure. An attacker can enumerate users via the QueryComponentRendererValue!Default.jspa endpoint and thus potentially access sensitive information, modify data, and/or execute unauthorized operations, Affected versions are before version 8.5.13, from version 8.6.0 before 8.13.5, and from version 8.14.0 before 8.15.1.
View the template here CVE-2020-36289.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2020-36289