Vulnerability · Published Nov 21, 2025 · Assigned by Wordfence
CVE-2025-13159Flo Forms – Easy Drag & Drop Form Builder <= 1.0.43 - Unauthenticated Stored Cross-Site Scripting via SVG Upload
High 7.1
In plain English
A high-severity cross-site scripting in Flo Forms – Easy Drag & Drop Form Builder from flothemesplugins. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| flothemesplugins | Flo Forms – Easy Drag & Drop Form Builder | 0 – through 1.0.43 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8c529017-2fb9-4665-97a6-3ec062908299?source=cve
- https://plugins.trac.wordpress.org/browser/flo-forms/trunk/includes/class-flo-forms.php#L301
- https://plugins.trac.wordpress.org/browser/flo-forms/trunk/public/class-flo-forms-public.php#L502
- https://plugins.trac.wordpress.org/browser/flo-forms/trunk/admin/class-flo-forms-admin.php#L821