CVE-2021-41304: Atlassian Data Center

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

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the /secure/admin/ImporterFinishedPage.jspa error message. The affected versions are before version 8.13.12, and from version 8.14.0 before 8.20.2.

Affected products

• Atlassian Data Center: before 8.13.12 (fixed in 8.13.12)
• Atlassian Jira: before 8.13.12 (fixed in 8.13.12)
• Atlassian Jira Data Center: from 8.14.0, before 8.20.2 (fixed in 8.20.2)
• Atlassian Jira Server: from 8.14.0, before 8.20.2 (fixed in 8.20.2)

Published 2021-10-26. Last modified 2026-06-17.