CVE-2026-16578

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 8, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 10, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Admin Safety Guard < 1.4.0 – Unauthenticated User Data Disclosure via 2fa/app/users REST Route | CVE 2026-16578 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/c02393ee-1ade-433e-bbd0-c09785e5c426/

Vendor Advisories for CVE-2026-16578(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 27× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-21 00:48 UTCEG score recompute
  2. 2026-08-21 00:48 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 12:05 UTCGHSA enrichment
  5. 2026-08-19 23:07 UTCEG score recompute
  6. 2026-08-19 23:07 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 10:24 UTCGHSA enrichment
  9. 2026-08-18 21:40 UTCEG score recompute
  10. 2026-08-18 21:40 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 08:23 UTCGHSA enrichment
  13. 2026-08-17 19:24 UTCEG score recompute
  14. 2026-08-17 19:24 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 05:00 UTCGHSA enrichment
  17. 2026-08-16 16:17 UTCEG score recompute
  18. 2026-08-16 16:17 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 03:35 UTCEG score recompute
  21. 2026-08-16 03:35 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 14:53 UTCGHSA enrichment
  24. 2026-08-15 02:10 UTCEG score recompute
  25. 2026-08-15 02:10 UTCGHSA enrichment
Show 26 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 13:28 UTCGHSA enrichment
  3. 2026-08-14 00:46 UTCEG score recompute
  4. 2026-08-14 00:46 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 12:03 UTCGHSA enrichment
  7. 2026-08-12 23:21 UTCEG score recompute
  8. 2026-08-12 23:21 UTCGHSA enrichment
  9. 2026-08-12 13:50 UTCEPSS rescore
  10. 2026-08-12 10:39 UTCGHSA enrichment
  11. 2026-08-11 21:56 UTCEG score recompute
  12. 2026-08-11 21:56 UTCGHSA enrichment
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 09:14 UTCEG score recompute
  15. 2026-08-11 09:14 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 20:31 UTCEG score recompute
  18. 2026-08-10 20:31 UTCGHSA enrichment
  19. 2026-08-10 20:05 UTCEG score recompute▲ 7.50
  20. 2026-08-10 20:05 UTCGHSA enrichment
  21. 2026-08-10 20:04 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  22. 2026-08-09 13:46 UTCEPSS rescore
  23. 2026-08-08 16:37 UTCEPSS rescore
  24. 2026-08-08 07:19 UTCNVD update
  25. 2026-08-08 06:22 UTCEG score recompute
  26. 2026-08-08 06:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16578?
CVE-2026-16578 is a high vulnerability published on August 8, 2026. 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…
When was CVE-2026-16578 disclosed?
CVE-2026-16578 was first published in the National Vulnerability Database on August 8, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16578 actively exploited?
CVE-2026-16578 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16578?
CVE-2026-16578 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16578?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16578, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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