CVE-2021-26080: Atlassian Jira Data Center

Medium severity, CVSS 6.1. EPSS: 1.3% chance of exploitation in the next 30 days.

EditworkflowScheme.jspa in Jira Server and Jira Data Center before version 8.5.14, and from version 8.6.0 before version 8.13.6, and from 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 Jira Data Center: before 8.5.14 (fixed in 8.5.14); 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: before 8.5.14 (fixed in 8.5.14); 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 2021-06-07. Last modified 2026-06-17.