What the vulnerability does
01Description
The Gutenify – Visual Site Builder Blocks & Site Templates. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's block attributes in all versions up to, and including, 1.5.9 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
Explanation of Vulnerability in Simple Terms
02Summary
Gutenify versions up to 1.5.9 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts into the site. These scripts execute in the browsers of other users, including administrators, potentially compromising site security and user data. The vulnerability affects the site builder's block and template functionality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers, potentially stealing credentials or modifying site content.
Potential impact on your site
04Site Impact
Authenticated users can inject persistent malicious code affecting all site visitors and administrators; requires immediate patching.
Conditions required to exploit
05Prerequisites
Attacker must have a user account with low-level privileges (e.g., contributor or editor role) on the WordPress site.
Key dates
06Disclosure timeline
November 18, 2025
CVE published
April 8, 2026
Record updated
