What is the CVSS score of CVE-2026-1560?

CVE-2026-1560 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of WordPress are affected by CVE-2026-1560?

The Lazy Blocks WordPress plugin contains a critical remote code execution vulnerability affecting all versions through 4.2.0, allowing attackers to execute arbitrary code on affected websites.

How to fix or mitigate CVE-2026-1560?

Within 24 hours: Inventory all WordPress installations using Lazy Blocks plugin and isolate affected systems from production if possible. Within 7 days: Disable the Lazy Blocks plugin entirely or replace with alternative block builder solutions; implement Web Application Firewall rules to block exploitation attempts. Within 30 days: Conduct security audit of affected systems for signs of compromise; establish vendor monitoring for patch availability and plan immediate deployment upon release.

WordPress CVE-2026-1560

HIGH

Code Injection (CWE-94)

2026-02-11 security@wordfence.com

WordPress RCE

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 11, 2026 - 09:15 nvd

HIGH 8.8

DescriptionCVE.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.