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CVE-2026-1560

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/11/2026

Last Modified2/11/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-94

References

https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset/3454012/(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

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