GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor <= 2.4.15 - Authenticated (Contributor+) Information Exposure

4.3
Exposure of Sensitive Information to an Unauthorized Actor
CVE CVE-2026-19699
CVSS 4.3 (Medium)
Publicly Published August 21, 2026
Last Updated August 24, 2026
Researcher Shikhali Jamalzade

Description

The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.4.15. This makes it possible for authenticated attackers, with contributor-level access and above, to extract sensitive user or configuration data.

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Vulnerability Details for GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor

Software Type Plugin
Software Slug gutenkit-blocks-addon (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.5.0, or a newer patched version
Affected Version
  • <= 2.4.15
Patched Version
  • 2.5.0

Recent vulnerabilities in GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor

# Title CVE ID CVSS Researchers Date
1 GutenKit <= 2.4.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postBodyCss' CVE-2026-2573 6.4 Athiwat Tiprasaharn (Jitlada), Itthidej Aramsri (Boeing777) September 2, 2026
2 GutenKit <= 2.5.0 - Authenticated (Contributor+) Arbitrary CSS Injection CVE-2026-19698 4.3 Haitam Lazaar September 1, 2026
3 GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor < 2.5.0 - Authenticated (Author+) Stored Cross-Site Scripting CVE-2026-19697 6.4 Yaswanth Reddy Sunkara August 21, 2026
4 GutenKit <= 2.4.12 - Missing Authorization to Unauthenticated Sensitive Information Exposure via Mailchimp REST Endpoints CVE-2026-15827 5.3 Viet Anh Ngo July 22, 2026
5 GutenKit <= 2.4.2 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-57900 6.4 Prissy September 22, 2025
6 GutenKit <= 2.2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-46253 6.4 Khalid Yusuf April 22, 2025
7 GutenKit <= 2.1.0 - Unauthenticated Arbitrary File Upload CVE-2024-9234 9.8 Sean Murphy October 10, 2024

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