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TI-2021-03667 Aliases CVE-2021-20392GHSA-fvm4-pf5q-h76x

Cross-site scripting in IBM QRadar SIEM

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

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

Summary

IBM QRadar User Behavior Analytics 1.0.0 through 4.0.1 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Why it matters now

EPSS 0.00653 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMQRadar SIEM1.0.0; 4.1.1—No fix listedCNA
  • QRadar SIEM VendorIBM Affected 1.0.0; 4.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ibm:qradar_user_behavior_analytics:*:*:*:*:*:*:*:*1.0.0 to before 4.1.0VulnerableIBM
  • cpe:2.3:a:ibm:qradar_user_behavior_analytics:*:*:*:*:*:*:*:* Versions 1.0.0 to before 4.1.0 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20392
  2. 2026-10-03 Alias added: GHSA-fvm4-pf5q-h76x
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2021-10433 Cross-site request forgery in IBM QRadar User Behavior Analytics CVSS 3.1HIGH 8.8
  • TI-2021-03668 Information disclosure through error messages in IBM QRadar SIEM CVSS 3.1HIGH 7.5
  • TI-2022-17012 Improper access control in IBM QRadar User Behavior Analytics CVSS 3.1MEDIUM 6.5
  • TI-2021-03700 Incorrect authorization in IBM QRadar SIEM CVSS 3.1MEDIUM 5.3
  • TI-2021-03666 Insecure storage of sensitive information in IBM QRadar SIEM CVSS 3.1LOW 3.3

Sources

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