What’s Vulnerable › Vulnerabilities

CVE-2021-41304

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-26 · updated 2026-06-17
• Weakness: CWE-79

Description

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 /secure/admin/ImporterFinishedPage.jspa error message. The affected versions are before version 8.13.12, and from version 8.14.0 before 8.20.2.

Affected products

• Atlassian Data Center: before 8.13.12 — fixed in 8.13.12
• Atlassian Jira: before 8.13.12 — fixed in 8.13.12
• Atlassian Jira: from 8.14.0 before 8.20.2 — fixed in 8.20.2
• Atlassian Jira: from 8.14.0 before 8.20.2 — fixed in 8.20.2

How to fix

Upgrade to a fixed version: Atlassian Data Center 8.13.12; Atlassian Jira 8.13.12; Atlassian Jira 8.20.2; Atlassian Jira 8.20.2. Check the vendor advisory for mitigations.

References

• https://jira.atlassian.com/browse/JRASERVER-72939
• https://jira.atlassian.com/browse/JRASERVER-72939

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