WordPress plugin
Security Hardener security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 1 known vulnerability is fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High1
- Medium0
- Low0
All Security Hardener vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Subscriber+) Privilege Escalation via REST API '/wp/v2/users' permission_callback Overwrite ≤2.4.4Update to 2.4.5 | CVE-2026-16149 |
- High8.8Authenticated (Subscriber+) Privilege Escalation via REST API '/wp/v2/users' permission_callback Overwrite
≤2.4.4Update to 2.4.5
Security Hardener: common questions
Does Security Hardener have known vulnerabilities?
Yes. VulnCrest Radar lists 1 known vulnerability in Security Hardener: 1 high. None are known to affect version null.
How do I check which version of Security Hardener I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Security Hardener vulnerability?
CVE-2026-16149, published Aug 22, 2026: Security Hardener <= 2.4.4 - Authenticated (Subscriber+) Privilege Escalation via REST API '/wp/v2/users' permission_callback Overwrite. Severity: High (CVSS 8.8).
Is any Security Hardener vulnerability listed in CISA KEV?
No. None of the known Security Hardener vulnerabilities is currently listed in the CISA KEV catalog.