Stackable – Page Builder Gutenberg Blocks <= 3.13.6 - Unauthenticated CSS Injection

5.3
Improper Control of Generation of Code ('Code Injection')
CVE CVE-2024-8760
CVSS 5.3 (Medium)
Publicly Published October 11, 2024
Last Updated October 12, 2024
Researcher Francesco Carlucci

Description

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to CSS Injection in all versions up to, and including, 3.13.6. This makes it possible for unauthenticated attackers to embed untrusted style information into comments resulting in a possibility of data exfiltration such as admin nonces with limited impact. These nonces could be used to perform CSRF attacks within a limited time window. The presence of other plugins may make additional nonces available, which may pose a risk in plugins that don't perform capability checks to protect AJAX actions or other actions reachable by lower-privileged users.

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Vulnerability Details for Stackable – Page Builder Gutenberg Blocks

Software Type Plugin
Software Slug stackable-ultimate-gutenberg-blocks (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.13.7, or a newer patched version
Affected Version
  • <= 3.13.6
Patched Version
  • 3.13.7

Recent vulnerabilities in Stackable – Page Builder Gutenberg Blocks

# Title CVE ID CVSS Researchers Date
1 Stackable <= 3.19.5 - Authenticated (Author+) Stored Cross-Site Scripting CVE-2025-47500 6.4 daroo January 7, 2026
2 Stackable <= 3.18.1 - Missing Authorization CVE-2025-60094 4.3 Abu Hurayra (HurayraIIT) September 26, 2025
3 Stackable <= 3.18.1 - Authenticated (Contributor+) Sensitive Information Exposure CVE-2025-60095 4.3 Abu Hurayra (HurayraIIT) September 26, 2025
4 Stackable – Page Builder Gutenberg Blocks <= 3.13.11 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-12117 6.4 zer0gh0st January 21, 2025
5 Stackable – Page Builder Gutenberg Blocks <= 3.13.1 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting CVE-2024-6296 6.4 Webbernaut June 27, 2024
6 Stackable – Page Builder Gutenberg Blocks <= 3.12.11 - Authenticated(Contributor+) Stored Cross-Site Scripting via Posts Block CVE-2024-2039 6.4 Ngô Thiên An (ancorn_), Dau Hoang Tai March 28, 2024
7 Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get CVE-2023-33999 6.1 Rafie Muhammad July 18, 2023
8 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVE-2022-4974 6.3 March 4, 2022

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