RCE in Nko Custom Block Builder – Lazy Blocks
CVE-2026-1560
The Custom Block Builder – Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticate…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.091 (94.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Nko Custom Block Builder – Lazy Blocks — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-1560?
- CVE-2026-1560 is a high-severity vulnerability in Nko Custom Block Builder – Lazy Blocks, classified under Code Injection. CVSS score: 8.8/10. Published 2026-02-11.
- How severe is CVE-2026-1560?
- High severity. CVSS v3 base score is 8.8 out of 10.