{"cve":"CVE-2020-21999","nvd":{"published":"2021-05-04T16:15:07.777","modified":"2026-06-17T03:04:02.240","status":"Modified","description":"iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user via the 'strInIP' POST parameter in pingTest PHP script.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-78"],"references":["https://www.exploit-db.com/exploits/47066","https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5525.php","https://www.exploit-db.com/exploits/47066","https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5525.php"],"products":["iwt:facesentry_access_control_system_firmware"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-21999","score":0.05242,"percentile":0.92531,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}