Spectra – WordPress Gutenberg Blocks <= 2.3.1 - Missing Authorization Checks

6.3
Missing Authorization
CVSS 6.3 (Medium)
Publicly Published January 25, 2023
Last Updated January 22, 2024

Description

The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the import_wpforms, import_block, and activate_plugin functions called via AJAX actions in versions up to, and including, 2.3.1. This makes it possible for authenticated attackers, such as subscribers, to activate arbitrary plugins and import blocks and forms from WPForms.

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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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