Essential Blocks <= 4.0.6 - Missing Authorization via save

4.3
Missing Authorization
CVE CVE-2023-2083
CVSS 4.3 (Medium)
Publicly Published April 18, 2023
Last Updated January 22, 2024
Researcher Marco Wotschka - Wordfence

Description

The Essential Blocks plugin for WordPress is vulnerable to unauthorized use of functionality due to a missing capability check on the save function in versions up to, and including, 4.0.6. This makes it possible for subscriber-level attackers to save plugin settings. While a nonce check is present, it is only executed when a nonce is provided. Not providing a nonce results in the nonce verification to be skipped. There is no capability check.

References

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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 4.0.7, or a newer patched version
Affected Version
  • <= 4.0.6
Patched Version
  • 4.0.7

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 AlexHenry, 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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