# Form Maker by 10Web <= 1.15.49 - Unauthenticated Stored Cross-Site Scripting via SVG File Upload

- **ID:** WPSEC-2026-1091
- **Plugin:** Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder (`form-maker`), https://wordpress.org/plugins/form-maker/
- **Affected versions:** from 1.15.36 before 1.15.50
- **Fixed in:** 1.15.50 (Update to 1.15.50 or later.)
- **Severity:** High 7.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Medium, affected versions Low (as of 2026-10-16)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/form-maker
- **Fix released:** 2026-10-15
- **Published:** 2026-10-16
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1091/

## Description

The Form Maker by 10Web plugin for WordPress is vulnerable to Stored Cross-Site Scripting via front-end form file uploads in versions 1.15.36 up to, and including, 1.15.49. This is due to an incomplete check of uploaded SVG file content that can be bypassed with whitespace padding. This makes it possible for unauthenticated attackers to upload SVG files containing arbitrary web scripts through a form with a file upload field. The scripts execute whenever a user accesses the uploaded file.

## References

- https://wpsec.com/vuln/WPSEC-2026-1091/
- https://plugins.svn.wordpress.org/form-maker/tags/1.15.50/
- https://wordpress.org/plugins/form-maker/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1091/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.