cve/2021/CVE-2021-31643.md

### [CVE-2021-31643](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31643)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### 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.

### POC

#### Reference
- http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643

#### Github
No PoCs found on GitHub currently.