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TI-2020-10809 Aliases CVE-2020-13821GHSA-9qcc-v828-vgx7

An issue was discovered in HiveMQ Broker Control Center 4.3.2.

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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

An issue was discovered in HiveMQ Broker Control Center 4.3.2. A crafted clientid parameter in an MQTT packet (sent to the Broker) is reflected in the client section of the management console. The attacker's JavaScript is loaded in a browser, which can lead to theft of the session and cookie of the administrator's account of the Broker.

Why it matters now

EPSS 0.00532 45th 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hivemq:broker_control_center:4.3.2:*:*:*:*:*:*:*4.3.2VulnerableHivemq
  • cpe:2.3:a:hivemq:broker_control_center:4.3.2:*:*:*:*:*:*:* Versions 4.3.2 Vulnerable ·Hivemq

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-13821
  2. 2026-10-03 Alias added: GHSA-9qcc-v828-vgx7

References

Advisory 2

Sources

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