ZKTeco ZKBioSecurity 3.0 Cross-Site Request Forgery Superadmin

Published 7 mo ago 2026-03-15 · modified 3 mo ago 2026-07-28 · JSON

CVSS

4.3

v3.1 · CNA

CISA KEV

not known exploited

EPSS

0.2%

percentile 12%

Public exploits

none known

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.

CISA SSVC assessment

Exploitation: Proof of concept public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago 2026-03-16

Exploit prediction (EPSS)

0.22% probability of exploitation in the next 30 days, higher than 12% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	4.0	5.3	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L`
CNA	3.1	4.3	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`
CNA	4.0	5.3	`CVSS: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`
CNA	3.1	4.3	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`

Affected products

ZKTeco Inc. ZKTeco ZKBioSecurity

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

zeroscience.mk /en/vulnerabilities/ZSL-2016-5364.php · third-party-advisory
cxsecurity.com /issue/WLB-2016080268 · third-party-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/116477 · vdb-entry
packetstormsecurity.com /files/138569 · exploit
exploit-db.com /exploits/40325/ · exploit
vulncheck.com /advisories/zkteco-zkbiosecurity-cross-site-request-forgery-superadmin · third-party-advisory

Sources

CVE List: CVE-2016-20028
NVD: CVE-2016-20028

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary