Vulnerabilities and security researches forflex-guten flex-guten

Aug 07, 2025

CVE, Research URL: CVE-2025-6256
Home page URL: Security reports for Flex Guten – A Multipurpose Gutenberg Blocks Plugin
Application: Flex Guten – A Multipurpose Gutenberg Blocks Plugin
Date: Aug 06, 2025
Research Description: The Flex Guten plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘thumbnailHoverEffect’ parameter in all versions up to, and including, 1.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected versions: Min -, max -.
Status: vulnerable