{"id":"CVE-2020-13821","state":"PUBLISHED","title":"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 managem","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.","publishedAt":"2020-08-26T15:23:46.000Z","updatedAt":"2024-08-04T12:25:16.551Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt","https://www.hivemq.com/blog/hivemq-4-3-3-released/"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:30.825Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/13xxx/CVE-2020-13821.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-13821","state":"PUBLISHED","datePublished":"2020-08-26T15:23:46.000Z","dateUpdated":"2024-08-04T12:25:16.551Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-06-04T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt","tags":["x_refsource_MISC"]},{"url":"https://www.hivemq.com/blog/hivemq-4-3-3-released/","tags":["x_refsource_CONFIRM"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2020-12-21T20:02:27.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-13821","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt","refsource":"MISC","url":"https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt"},{"name":"https://www.hivemq.com/blog/hivemq-4-3-3-released/","refsource":"CONFIRM","url":"https://www.hivemq.com/blog/hivemq-4-3-3-released/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://payatu.com/advisory/hivemq-mqtt-broker---xss-over-mqtt","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.hivemq.com/blog/hivemq-4-3-3-released/","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T12:25:16.551Z"}}]}}}