CVE-2026-91152
CVE-2026-91152 · Everest Forms <= 3.6.2 - Reflected Cross-Site Scripting via 'evf_toast_type' Parameter
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'evf_toast_type' parameter in all versions up to, and including, 3.6.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the sibling evf_toast parameter to decode successfully via atob(), but this is a trivially attacker-controlled prerequisite.
CVSS 6.1 · Medium · EPSS 0.3%
- Published
- Updated
Affected products and versions
everest forms – contact form, payment form, quiz, survey & custom form builder with ai
- Versions
- ≥ 0, ≤ 3.6.2: Affected (semver)
No fix published
Original sources
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8a017198-daf1-4779-a101-dc539e263e50?source=cve
- https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/assets/js/admin/admin.js#L22
- https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/assets/js/admin/admin.js#L91
- https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/includes/admin/class-evf-admin-assets.php#L376
- https://plugins.trac.wordpress.org/changeset/3704878/everest-forms/trunk/assets/js/admin/admin.js
- https://nvd.nist.gov/vuln/detail/CVE-2026-91152