WordPress
CVE-2026-1560
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Remote code execution in the Custom Block Builder - Lazy Blocks WordPress plugin through version 4.2.0 allows authenticated users with Contributor privileges or higher to execute arbitrary code on the server via vulnerable functions in the LazyBlocks_Blocks class. This high-severity vulnerability (CVSS 8.8) affects all installations of the affected plugin versions with no patch currently available.
Technical ContextAI
Classified as CWE-94 (Code Injection). Affects the multiple component of Lazy Block. 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 ProductsAI
Product: Lazy Block. Versions: up to 4.2.0. Component: multiple.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
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