# Forminator Forms <= 1.57.3 - Unauthenticated Stored Cross-Site Scripting via Form Submission Values

- **ID:** WPSEC-2026-0619
- **Plugin:** Forminator Forms – Contact Form, Payment Form & Custom Form Builder (`forminator`), https://wordpress.org/plugins/forminator/
- **Affected versions:** all versions before 1.57.3.1
- **Fixed in:** 1.57.3.1 (Update to 1.57.3.1 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 Medium (as of 2026-10-08)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/forminator
- **Fix released:** 2026-10-07
- **Published:** 2026-10-08
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0619/

## Description

The Forminator Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form submission values in all versions up to, and including, 1.57.3 due to insufficient input sanitization and output escaping. HTML was kept in sub-values of array-valued submissions for fields such as Name, Address, Date and Time, and submission values were output on the admin submission and quiz lead screens with an overly permissive filter. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the submission.

## References

- https://wpsec.com/vuln/WPSEC-2026-0619/
- https://plugins.svn.wordpress.org/forminator/tags/1.57.3.1/
- https://wordpress.org/plugins/forminator/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0619/

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.