CVE-2026-1560 PUBLISHED

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.

• Youssef Elouaer finder

• https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve
• https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88
• https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637
• https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766
• https://plugins.trac.wordpress.org/changeset/3454012/

• CWE-94 Improper Control of Generation of Code ('Code Injection') CWE