Information disclosure in Admin Safety Guard — Login Security, Limit Logins, 2fa & Brute Force Protection

CVE-2026-16578

The Admin Safety Guard — Login Security, Limit Logins, 2FA & Brute Force Protection WordPress plugin before 1.4.0 does not perform any capability check on one of its REST API endpoints, allowing unauthenticated attackers to retrieve the full list of registered users including their usernames, email addresses, roles, and two-factor authentication enrollment status.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-16578: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Admin Safety Guard — Login Security, Limit Logins, 2fa & Brute Force Protection — versions 1.2.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16578?
CVE-2026-16578 is a high-severity vulnerability in Admin Safety Guard — Login Security, Limit Logins, 2fa & Brute Force Protection, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-08-08.
How severe is CVE-2026-16578?
High severity. CVSS v3 base score is 7.5 out of 10.