Spectra – WordPress Gutenberg Blocks <= 2.3.1 - Cross-Site Request Forgery to Plugin Activation

6.3
Cross-Site Request Forgery (CSRF)
CVE CVE-2023-23834
CVSS 6.3 (Medium)
Publicly Published January 25, 2023
Last Updated January 22, 2024
Researcher István Márton - Wordfence

Description

The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.3.1 This is due to missing nonce validation on the activate_plugin function called via an AJAX action. This makes it possible for unauthenticated attackers to activate arbitrary plugins, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

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Vulnerability Details for Spectra Legacy – Gutenberg Blocks

Software Type Plugin
Software Slug ultimate-addons-for-gutenberg (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.3.2, or a newer patched version
Affected Version
  • <= 2.3.1
Patched Version
  • 2.3.2

Recent vulnerabilities in Spectra Legacy – Gutenberg Blocks

# Title CVE ID CVSS Researchers Date
1 Spectra Gutenberg Blocks <= 2.19.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via uagb/image Block CVE-2026-12900 6.4 theviper17y July 20, 2026
2 Spectra Legacy – Gutenberg Blocks < 2.20.0 - Authenticated (Contributor+) CSS Injection CVE-2026-10827 4.3 Muni Nitish Kumar Yaddala July 20, 2026
3 Spectra Gutenberg Blocks <= 2.19.25 - Authenticated (Contributor+) Remote Code Execution via Arbitrary PHP Function Call via Block Attributes CVE-2026-7465 8.8 kai63001 May 29, 2026
4 Spectra <= 2.19.22 - Missing Authorization CVE-2026-42648 4.3 Trương Hữu Phúc (truonghuuphuc) March 27, 2026
5 Spectra Gutenberg Blocks <= 2.19.17 - Unauthenticated Information Disclosure in Sensitive Data CVE-2026-0950 5.3 johska February 2, 2026
6 Spectra <= 2.19.17 - Missing Authorization CVE-2026-24982 5.3 Bao - BlueRock January 17, 2026
7 Spectra <= 2.19.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom CSS CVE-2025-11162 6.4 Muhammad Yudha - DJ November 4, 2025
8 Spectra – WordPress Gutenberg Blocks <= 2.19.0 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-1784 6.4 Peter Thaleikis March 25, 2025
9 Spectra – WordPress Gutenberg Blocks <= 2.16.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Team Widget CVE-2024-10484 6.4 zer0gh0st December 2, 2024
10 Spectra – WordPress Gutenberg Blocks <= 2.15.0 - Authenticated (Contributor+) Stored Cross-site Scripting CVE-2024-7590 6.4 João Pedro Soares de Alcântara August 7, 2024

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