Flo Forms – Easy Drag & Drop Form Builder <= 1.0.43 - Unauthenticated Stored Cross-Site Scripting via SVG Upload
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| flothemesplugins | Flo Forms – Easy Drag & Drop Form Builder | up to 1.0.43 | — | No fix listed | CNA |
- Flo Forms – Easy Drag & Drop Form Builder Vendorflothemesplugins Affected up to 1.0.43 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-13159
- 2026-10-03 Alias added: GHSA-353x-4wxr-qqh7
References
Other 4
- 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
More flothemesplugins vulnerabilities
- TI-2025-23310 WordPress Flo Forms plugin <= 1.0.43 - Broken Access Control vulnerability CVSS 3.1MEDIUM 6.5
- TI-2023-25829 WordPress Flo Forms plugin <= 1.0.41 - Broken Access Control vulnerability CVSS 3.1MEDIUM 4.3
Sources
- CVE-2025-13159 · CVE Program
- CVE-2025-13159 · NVD
- FIRST EPSS
- GHSA-353x-4wxr-qqh7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences