What the vulnerability does
01Description
The Flo Forms – Easy Drag & Drop Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file uploads in all versions up to, and including, 1.0.43. This is due to the plugin allowing SVG file uploads via an unauthenticated AJAX endpoint (`flo_form_submit`) without proper file content validation. This makes it possible for unauthenticated attackers to upload malicious SVG files containing JavaScript that executes when an administrator views the uploaded file in the WordPress admin interface, leading to potential full site compromise.
Explanation of Vulnerability in Simple Terms
02Summary
Flo Forms – Easy Drag & Drop Form Builder versions 1.0.43 and earlier contain a cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in users' browsers when they interact with affected forms. The vulnerability requires user interaction and can affect other users or site functionality. Update to a version newer than 1.0.43 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in users' browsers when they view or interact with forms.
Potential impact on your site
04Site Impact
Site visitors may have their sessions hijacked, credentials stolen, or be redirected to malicious sites when using affected forms.
Conditions required to exploit
05Prerequisites
No authentication required. Victim must view or interact with a page containing the vulnerable form.
Key dates
06Disclosure timeline
November 21, 2025
CVE published
April 8, 2026
Record updated
