What the vulnerability does
01Description
The Gutenverse Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file upload in all versions up to, and including, 2.3.2. This is due to the plugin's framework component adding SVG to the allowed MIME types via the upload_mimes filter without implementing any sanitization of SVG file contents. This makes it possible for authenticated attackers, with Author-level access and above, to upload SVG files containing malicious JavaScript that executes when the file is viewed, leading to arbitrary JavaScript execution in victims' browsers.
Explanation of Vulnerability in Simple Terms
02Summary
Gutenverse Form versions up to 2.3.2 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the form builder interface and can impact other users viewing or interacting with affected forms. Site administrators should update to a version newer than 2.3.2 to remediate this issue.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers when they view or interact with forms.
Potential impact on your site
04Site Impact
Authenticated attackers can inject scripts affecting other site users, potentially stealing credentials or session tokens.
Conditions required to exploit
05Prerequisites
Attacker must have a WordPress user account with low privileges (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
January 8, 2026
CVE published
April 8, 2026
Record updated
