Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

6.4
Improper Input Validation
CVE CVE-2024-1854
CVSS 6.4 (Medium)
Publicly Published February 28, 2024
Last Updated March 13, 2024
Researchers Ngô Thiên An (ancorn_)
Dau Hoang Tai - VCI

Description

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the blockId parameter in all versions up to, and including, 4.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Vulnerability Details for Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

Software Type Plugin
Software Slug essential-blocks (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.5.2, or a newer patched version
Affected Version
  • <= 4.5.1
Patched Version
  • 4.5.2

Recent vulnerabilities in Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

# Title CVE ID CVSS Researchers Date
1 Gutenberg Essential Blocks - Page Builder for Gutenberg Blocks & Patterns <= 6.1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'configurablePrefix' Block Attribute CVE-2026-10833 6.4 Viet Anh Ngo June 24, 2026
2 Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns <= 6.1.3 - Authenticated (Author+) Server-Side Request Forgery CVE-2026-10586 7.2 Shambles June 4, 2026
3 Gutenberg Essential Blocks <= 6.0.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes CVE-2026-4658 6.4 Jack Pas (Dark.), normaandersonfrank May 1, 2026
4 Essential Blocks <= 5.7.2 - Missing Authorization To Authenticated (Author+) Information Disclosure CVE-2025-11369 4.3 Dmitrii Ignatyev December 16, 2025
5 Essential Blocks <= 5.7.1 - Authenticated (Author+) Server-Side Request Forgery CVE-2025-11361 6.4 Dmitrii Ignatyev October 17, 2025
6 Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns <= 5.7.1 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-11270 6.4 Rafshanzani Suhada October 17, 2025
7 Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Slider and Post Carousel Widgets CVE-2025-4682 6.4 Webbernaut May 26, 2025
8 Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-1664 6.4 Webbernaut March 7, 2025
9 Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-13803 6.4 zer0gh0st February 25, 2025
10 Essential Blocks for Gutenberg <= 4.8.3 - Missing Authorization CVE-2025-26871 4.3 Rafie Muhammad February 22, 2025

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