CVE-2021-26083: Atlassian Data Center

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Export HTML Report in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability.

Affected products

• Atlassian Data Center: before 8.5.14 (fixed in 8.5.14)
• Atlassian Jira: before 8.5.14 (fixed in 8.5.14)
• Atlassian Jira Data Center: from 8.6.0, before 8.13.6 (fixed in 8.13.6); from 8.14.0, before 8.16.1 (fixed in 8.16.1)
• Atlassian Jira Server: from 8.6.0, before 8.13.6 (fixed in 8.13.6); from 8.14.0, before 8.16.1 (fixed in 8.16.1)

Published 2021-07-20. Last modified 2026-06-17.