CVE-2020-14181: Atlassian Data Center

Medium severity, CVSS 5.3. EPSS: 99.6% chance of exploitation in the next 30 days.

Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure vulnerability in the /ViewUserHover.jspa endpoint. The affected versions are before version 7.13.6, from version 8.0.0 before 8.5.7, and from version 8.6.0 before 8.12.0.

Affected products

• Atlassian Data Center: before 7.13.6 (fixed in 7.13.6); from 8.0.0, before 8.5.7 (fixed in 8.5.7); from 8.6.0, before 8.12.0 (fixed in 8.12.0)
• Atlassian Jira: before 7.13.6 (fixed in 7.13.6)
• Atlassian Jira Server: from 8.0.0, before 8.5.7 (fixed in 8.5.7); from 8.6.0, before 8.12.0 (fixed in 8.12.0)

Published 2020-09-17. Last modified 2026-06-17.