Medium severity5.4NVD Advisory· Published Aug 26, 2020· Updated Jun 17, 2026
CVE-2020-13821
CVE-2020-13821
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.
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Affected products
5cpe:2.3:a:hivemq:broker_control_center:4.3.2:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:hivemq:broker_control_center:4.3.2:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: =4.3.2
- Range: =4.3.2
Patches
Vulnerability mechanics
References
2- payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqttnvdThird Party Advisory
- www.hivemq.com/blog/hivemq-4-3-3-released/nvdRelease NotesVendor Advisory
News mentions
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