Is CVE-2025-3421 actively exploited?

CVE-2025-3421 has no public evidence of in-the-wild exploitation as of 2026-04-08.

What is the CVSS score for CVE-2025-3421?

CVE-2025-3421 has a CVSS score of 6.1 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

How do I patch CVE-2025-3421?

Patch guidance is available from wpeverest security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-3421.

Which products are affected by CVE-2025-3421?

1 product: wpeverest everest forms.

CVE-2025-3421 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: WPEVEREST
Published: 4/11/2025
Last Modified: 4/8/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-3421

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary