CVE-2021-43952: Atlassian Jira Data Center

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to restore the default configuration of fields via a Cross-Site Request Forgery (CSRF) vulnerability in the /secure/admin/RestoreDefaults.jspa endpoint. The affected versions are before version 8.21.0.

Affected products

• Atlassian Jira Data Center: before 8.13.18 (fixed in 8.13.18); from 8.20.0, before 8.20.6 (fixed in 8.20.6)
• Atlassian Jira Server: before 8.13.18 (fixed in 8.13.18); from 8.20.0, before 8.20.6 (fixed in 8.20.6)

Published 2022-02-15. Last modified 2026-06-17.