What’s Vulnerable › Vulnerabilities

CVE-2025-3421: Everest Forms <= 3.1.1 - Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-11 · updated 2026-06-17
• Weakness: CWE-79

Description

The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'form_id' parameter in all versions up to, and including, 3.1.1 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.

Affected products

• wpeverest Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder: before 3.1.2 — fixed in 3.1.2

How to fix

Upgrade to a fixed version: wpeverest Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder 3.1.2. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/3268742/
• https://plugins.trac.wordpress.org/changeset/3268742/everest-forms/tags/3.1.2/templates/form-preview/evf-form-preview-template.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d55737a5-8aa5-4c26-bbb5-bbc5ea8be8d1?source=cve

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