XSS in Chiyu-tech Bf-630
CVE-2021-31643
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.884 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-31643?
- CVE-2021-31643 is a medium-severity vulnerability in Chiyu-tech Bf-630, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-06-01.
- How severe is CVE-2021-31643?
- Medium severity. CVSS v3 base score is 5.4 out of 10.