CVE-2020-4021: Atlassian Jira

Medium severity, CVSS 5.4. EPSS: 1% chance of exploitation in the next 30 days.

Affected versions are: Before 8.5.5, and from 8.6.0 before 8.8.1 of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the XML export view.

Affected products

• Atlassian Jira: before 7.13.16 (fixed in 7.13.16)
• Atlassian Jira Data Center: from 8.0.0, before 8.5.5 (fixed in 8.5.5); from 8.6.0, before 8.8.1 (fixed in 8.8.1)
• Atlassian Jira Server: from 8.0.0, before 8.5.5 (fixed in 8.5.5); from 8.6.0, before 8.8.1 (fixed in 8.8.1)
• Atlassian Jira Software Data Center: before 7.13.16 (fixed in 7.13.16)

Published 2020-06-01. Last modified 2026-06-17.