Extendify
Extendify has one disclosed vulnerability in the WordSec catalog, all reported in 2026; it is fixed as of October 2026. Their average CVSS score is 7.2, and the most serious one scores 7.2 out of 10. Severity breakdown: 0 critical and 1 high.
The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).
The one issue recorded for Extendify has a vendor fix available, so running the current release closes it.
All of these findings were reported by Jack Taylor. Extendify is installed on roughly 500,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 7.1.3.
CVE-2026-85679Extendify <= 3.1.6 - Unauthenticated Stored Cross-Site Scripting via 'styles.blocks' Block Type Key
Read the full analysisVulnerability Records

Extendify
Author
Extendify
Extendify is the platform of site design and creation tools for people that want to build a beautiful WordPress website with a library of patterns for the Gutenberg block editor. Make a beautiful WordPress website easier and faster than ever before with Extendify’s library of Gutenberg block patterns for Gutenberg. A library of Gutenberg block patterns Our library of reusable website block patterns can be assembled to rapidly build beautiful websites or add to existing ones. These well-designed block patterns enable you to drag, drop and publish in WordPress, without a single line of code. Core Gutenberg blocks Get beautiful patterns without the added maintenance of third-party blocks or block collections, as our Gutenberg block patterns are made with core WordPress blocks whenever possible. Built for your theme Extendify is a theme-agnostic design experience platform that works with your Gutenberg-friendly WordPress theme or Block Theme — instantly leveling-up your editing and publishing flow today. If you change your theme, colors, typography, or any other element, your Extendify Gutenberg block patterns will adapt to the new design. Block Pattern Types Choose from Gutenberg block pattern types for every part of your website, including: About page patterns Call to action patterns Feature patterns Gallery patterns Headline patterns Hero patterns Team patterns Text patterns Like Extendify? Follow us on Twitter. Rate us on WordPress 🙂 Privacy Extendify is a SaaS (software as a service) connector plugin that uses a custom API to fetch block patterns and page layouts from our servers. API requests are only made when a user clicks on the Library button. In order to provide and improve this service, Extendify passes site data along with an API request, including: Browser Referring site Category selection WP language WP version Active theme Active plugins Anonymized UUID Anonymized IP address By activating the Extendify plugin and accessing the library, you agree to our privacy policy and terms of service.
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