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TI-2021-19707 Aliases CVE-2021-43945GHSA-p59c-ffj3-xrcm

Cross-site scripting in Atlassian Jira Server

Priority LOW 23CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00575 47th percentileScored 2026-11-07
Fix Fixed Jira Server (Atlassian): 8.20.3Jira Data Center (Atlassian): 8.20.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianJira Serverbefore 8.20.38.20.3Patch availableCNA
AtlassianJira Data Centerbefore 8.20.38.20.3Patch availableCNA
  • Jira Server VendorAtlassian Affected before 8.20.3 Fixed in 8.20.3 Patch available CNA
  • Jira Data Center VendorAtlassian Affected before 8.20.3 Fixed in 8.20.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*before 8.20.3VulnerableAtlassian
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*before 8.20.3VulnerableAtlassian
  • cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* Versions before 8.20.3 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:* Versions before 8.20.3 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Jira Server (Atlassian) Fixed in 8.20.3
  • Fix · CNA Jira Data Center (Atlassian) Fixed in 8.20.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43945
  2. 2026-10-03 Alias added: GHSA-p59c-ffj3-xrcm

References

Advisory 1

  • TI-2020-18587 Incorrect authorization in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2020-11107 Information disclosure in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2021-16503 Insufficient session expiration in Atlassian Jira Server CVSS 3.1HIGH 7.5
  • TI-2017-13320 Code injection in Atlassian Jira Server CVSS 3.1HIGH 8.8
  • TI-2020-17687 Path traversal in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2021-16512 Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote… CVSS 3.1HIGH 7.5
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences