CVE-2023-51360 MEDIUM

CVE-2023-51360: WordPress Essential Blocks plugin <= 4.2.0 - Multiple Subscriber+ Broken Access Control vulnerability

Vendor Wpdeveloper
Product Essential Blocks for Gutenberg
Weakness CWE-862 · Missing authorization
Published December 9, 2024
Last update April 29, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg essential-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through <= 4.2.0.

Explanation of Vulnerability in Simple Terms

02Summary

Essential Blocks for Gutenberg versions up to 4.2.0 lack proper authorization checks on certain administrative functions. A logged-in user with low privileges can modify or delete content they should not have access to. The vulnerability does not expose sensitive data or crash the site, but allows unauthorized changes to published content.

What an attacker can do

03Attacker Capabilities

Modify or delete content without proper permission checks.

Potential impact on your site

04Site Impact

Unauthorized users can alter or remove published posts, pages, or block content.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege WordPress user account (e.g., contributor or subscriber).

Key dates

06Disclosure timeline

December 9, 2024 CVE published
April 29, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-40809 WordPress Metro Magazine theme <= 1.4.1 - Broken Access Control vulnerability CVE-2026-12113 Appointment Booking Calendar <= 1.4.02 - Missing Authorization to Authenticated (Contributor+) Sensitive Information Disclosure CVE-2026-12557 Ninja Forms - File Uploads <= 3.3.29 - Missing Authorization to Unauthenticated Log Disclosure and Deletion via debug-log/delete-all and debug-log/get-all REST Endpoints CVE-2026-9230 Quiz and Survey Master (QSM) <= 11.1.4 - Missing Authorization to Authenticated (Contributor+) Arbitrary Quiz Modification and Email Reroute via Leaked Nonce from /quiz/structure CVE-2026-11364 Product Specifications for Woocommerce <= 0.8.9 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Attribute/Group Creation, Modification, and Deletion via 'dwps_modify_groups' and 'dwps_modify_attributes' AJAX Actions