Describe CVE-2021-43945.
What is CVE-2021-43945?
Affected versions of Atlassian Jira Server and Data Center allow remote attackers with Roadmaps Administrator permissions to inject arbitrary HTML or JavaScript via a Stored Cross-Site Scripting (SXSS) vulnerability in the /rest/jpo/1.0/hierarchyConfiguration endpoint. The affected versions are before version 8.20.3..