WordPress plugin
Custom Block Builder – Lazy Blocks security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 4 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High1
- Medium3
- Low0
All Custom Block Builder – Lazy Blocks vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Contributor+) Remote Code Execution ≤4.2.0Update to 4.2.1 | CVE-2026-1560 |
- High8.8Authenticated (Contributor+) Remote Code Execution
≤4.2.0Update to 4.2.1
Custom Block Builder – Lazy Blocks: common questions
Does Custom Block Builder – Lazy Blocks have known vulnerabilities?
Yes. VulnCrest Radar lists 4 known vulnerabilities in Custom Block Builder – Lazy Blocks: 1 high, 3 medium. None are known to affect version null.
How do I check which version of Custom Block Builder – Lazy Blocks 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 Custom Block Builder – Lazy Blocks vulnerability?
CVE-2026-8981, published Jun 11, 2026: Custom Block Builder – Lazy Blocks < 4.3.0 - Authenticated (Administrator+) Stored Cross-Site Scripting. Severity: Medium (CVSS 4.4).
Is any Custom Block Builder – Lazy Blocks vulnerability listed in CISA KEV?
No. None of the known Custom Block Builder – Lazy Blocks vulnerabilities is currently listed in the CISA KEV catalog.