CVE-2020-13821

Published: Aug 26, 2020Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: NVD

Description

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.

Affected (1)

Products: Hivemq: Broker Control Center

1 product

Broker Control Center

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Hivemq Broker Control Center	Version 4.3.2

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt

Source: cve@mitre.org

Third Party Advisory

https://www.hivemq.com/blog/hivemq-4-3-3-released/

Source: cve@mitre.org

Release NotesVendor Advisory

https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.hivemq.com/blog/hivemq-4-3-3-released/

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.