Medium severity5.4NVD Advisory· Published Jun 1, 2021· Updated Jun 17, 2026
CVE-2021-31643
CVE-2021-31643
Description
An XSS vulnerability exists in several IoT devices from CHIYU Technology, including SEMAC, Biosense, BF-630, BF-631, and Webpass due to a lack of sanitization on the component if.cgi - username parameter.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- CHIYU Technology/IoT devicesdescription
Patches
Vulnerability mechanics
References
4- packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.htmlnvdExploitThird Party AdvisoryVDB Entry
- gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devicesnvdExploitThird Party Advisory
- seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/nvdExploitThird Party Advisory
- www.chiyu-tech.com/msg/message-Firmware-update-87.htmlnvdVendor Advisory
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