{"id":"CVE-2021-31250","aliases":["EUVD-2021-18162","GHSA-93wm-fh6p-4cpf"],"status":"published","title":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP...","description":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, ppp.cgi.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.79605,"percentile":0.9961,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-04T20:28:06Z","modified":"2026-06-17T03:51:30Z","exploits":[{"source":"nuclei","id":"CVE-2021-31250","title":"CHIYU TCP/IP Converter - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-31250.yaml"}],"products":[{"vendor":"chiyu-tech","product":"bf-430_firmware"},{"vendor":"chiyu-tech","product":"bf-431_firmware"},{"vendor":"chiyu-tech","product":"bf-450m_firmware"}],"references":[{"url":"https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31250","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.chiyu-tech.com/msg/message-Firmware-update-87.htm","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31250"},{"url":"https://github.com/advisories/GHSA-93wm-fh6p-4cpf"}],"sources":{"cve":[{"id":"CVE-2021-31250","description":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, ppp.cgi.","status":"published","published":"2021-06-04T20:28:06Z","modified":"2024-08-03T22:55:53.341Z","updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18162","description":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, ppp.cgi.","status":"published","published":"2021-06-04T20:28:06Z","modified":"2024-08-03T22:55:53Z","updated_at":"2026-11-03T03:24:39.559154Z"}],"ghsa":[{"id":"GHSA-93wm-fh6p-4cpf","title":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP...","description":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, ppp.cgi.","status":"published","published":"2022-05-24T19:04:00Z","modified":"2023-01-29T05:07:51Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:11.594724Z"}],"nvd":[{"id":"CVE-2021-31250","description":"Multiple storage XSS vulnerabilities were discovered on BF-430, BF-431 and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, ppp.cgi.","status":"published","published":"2021-06-04T21:15:07.49Z","modified":"2026-06-17T03:51:30.287Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:54.439974Z"}]}}