CVE-2016-20030 (GCVE-0-2016-20030)
Vulnerability from cvelistv5
Published
2026-03-15 13:35
Modified
2026-03-16 14:20
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Summary
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.
References
Impacted products
Vendor Product Version
ZKTeco Inc. ZKTeco ZKBioSecurity Version: 3.0.1.0_R_230
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