What’s Vulnerable › Vulnerabilities
CVE-2021-43945
- Severity: medium (CVSS 4.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-02-28 · updated 2026-06-17
- Weakness: CWE-79
Description
Affected versions of Atlassian Jira Server and Data Center allow remote attackers with Roadmaps Administrator permissions to inject arbitrary HTML or JavaScript via a Stored Cross-Site Scripting (SXSS) vulnerability in the /rest/jpo/1.0/hierarchyConfiguration endpoint. The affected versions are before version 8.20.3.
Affected products
- Atlassian Data Center: before 8.20.3 — fixed in 8.20.3
- Atlassian Jira: before 8.20.3 — fixed in 8.20.3
How to fix
Upgrade to a fixed version: Atlassian Data Center 8.20.3; Atlassian Jira 8.20.3. Check the vendor advisory for mitigations.
References
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