What is CVE-2016-20027?

CVE-2016-20027 is a medium-severity vulnerability in Zkteco Inc. Zkbiosecurity, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-15.

How severe is CVE-2016-20027?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Zkteco Inc. Zkbiosecurity

CVE-2016-20027

ZKTeco ZKBioSecurity 3.0 contains multiple reflected cross-site scripting vulnerabilities that allow attackers to execute arbitrary HTML and script code by injecting malicious payloads through unsanitized parameters in multiple scripts. At…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (2.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Zkteco Inc. Zkbiosecurity — versions 3.0.1.0_R_230

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Zero Science Lab Disclosure (third-party-advisory)
CXSecurity (third-party-advisory)
IBM X-Force Exchange (vdb-entry)
Packet Storm Security (exploit)
VulnCheck Advisory: ZKTeco ZKBioSecurity 3.0 Multiple Reflected XSS Vulnerabilities (third-party-advisory)

Frequently asked questions

What is CVE-2016-20027?: CVE-2016-20027 is a medium-severity vulnerability in Zkteco Inc. Zkbiosecurity, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-15.
How severe is CVE-2016-20027?: Medium severity. CVSS v3 base score is 6.1 out of 10.