CVE-2021-41310: Atlassian Jira Software Data Center

Medium severity, CVSS 6.1. EPSS: 0.7% 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 Associated Projects feature (/secure/admin/AssociatedProjectsForCustomField.jspa). The affected versions are before version 8.5.19, from version 8.6.0 before 8.13.11, and from version 8.14.0 before 8.19.1.

Affected products

• Atlassian Jira Software Data Center: before 8.5.19 (fixed in 8.5.19); from 8.6.0, before 8.13.11 (fixed in 8.13.11); from 8.14.0, before 8.19.1 (fixed in 8.19.1)

Published 2021-11-01. Last modified 2026-06-17.