CVEvulnerability
CVE-2021-31643
5.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-06-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• chiyu-tech bf-631 firmware
• chiyu-tech bf-630 firmware
• chiyu-tech semac s2 firmware
• chiyu-tech semac d1 firmware
• chiyu-tech semac d2 firmware
• chiyu-tech semac d4 firmware
• chiyu-tech semac s3v3 firmware
• chiyu-tech semac d2 n300 firmware
• chiyu-tech semac s1 osdp firmware
• chiyu-tech webpass firmware
• chiyu-tech biosense firmware
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html Exploit, Third Party Advisory, VDB Entry
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643 Exploit, Third Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/ Exploit, Third Party Advisory
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.html Vendor Advisory
- http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html Exploit, Third Party Advisory, VDB Entry
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643 Exploit, Third Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/ Exploit, Third Party Advisory
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.html Vendor Advisory