Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-block
- https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-block
- https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.
- https://plugins.trac.wordpress.org/changeset/3454012/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b04
FAQ
What is CVE-2026-1560?
CVE-2026-1560 is a vulnerability with a CVSS score of 8.8 (HIGH). 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. ...
How severe is CVE-2026-1560?
CVE-2026-1560 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1560?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.