CVE-2016-20028

ZKTeco ZKBioSecurity 3.0 contains a cross-site request forgery vulnerability that allows attackers to perform administrative actions by tricking logged-in users into visiting malicious websites. Attackers can craft HTTP requests that add superadmin accounts without validity checks, enabling unauthorized administrative access when authenticated users visit attacker-controlled pages.

CVSS v4.0

5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.21% chance of exploitation in the next 30 days, 11th percentile

Published

2026-03-15

Updated

2026-07-28

Proof-of-concept exploits (2)

• https://packetstormsecurity.com/files/138569
• https://www.exploit-db.com/exploits/40325/

References

• CVE Record
• NVD entry

Related

• CVE-2016-20027
• CVE-2016-20029
• CVE-2016-20026
• CVE-2016-20030
• CVE-2016-20025
• CVE-2016-20031