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CVE-2016-20030

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CVE-2016-20030

Published: Mar 15, 2026

Modified: Mar 16, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

Description

ZKTeco ZKBioSecurity 3.0 contains a user enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by submitting partial characters via the username parameter. Attackers can send requests to the authLoginAction!login.do script with varying username inputs to enumerate valid user accounts based on application responses.

VendorProductVersions

ZKTeco Inc.

ZKTeco ZKBioSecurity

affected
3.0.1.0_R_230

Weaknesses (CWE)

CWE-551

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Zero Science Lab Disclosure
third-party-advisory

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