CVE-2016-20030 — ZKTeco ZKBioSecurity 3.0 User Enumeration via authLoginAction
ZKTeco ZKBioSecurity 3.0 contains a user enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by submitting partial characters via the use…
Published: 2026-03-15 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7