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Software intelligence

Lazy Blocks vulnerabilities

4 tracked advisories · slug lazy-blocks

Important: Lazy Blocks appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

4

Latest advisory

11 June 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

lazy-blocks

Plugin

What this means for Lazy Blocks

This catalog lists 4 known advisories affecting Lazy Blocks. The most recent was published on 11 June 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • Custom Block Builder – Lazy Blocks < 4.3.0 - Authenticated (Administrator+) Stored Cross-Site Scripting

    May allow attackers to run scripts in visitors' browsers or hijack admin sessions.

    Published 11 June 2026

  • Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution

    May allow attackers to run arbitrary code on the server if exploited.

    Published 10 February 2026

  • Lazy Blocks <= 4.1.0 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 22 September 2025

Vulnerability types

  • Cross-site scripting2
  • Remote code execution1

Authentication (inferred from titles)

  • Unauthenticated0
  • Authenticated2
  • Unspecified2

Advisory history

Known Lazy Blocks advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Lazy Blocks version against this catalog when the Defence plugin is connected to your WordPress site.