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…

PriorityP267high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

9.09%

94.7th percentile

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 authenticated attackers, with Contributor-level access and above, to execute code on the server.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
nko	custom_block_builder_lazy_blocks	<= 4.2.0	—

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