CVE-2026-4388

High

Description

The Form Maker by 10Web plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Matrix field (Text Box input type) in form submissions in all versions up to, and including, 1.15.40. This is due to insufficient input sanitization (`sanitize_text_field` strips tags but not quotes) and missing output escaping when rendering submission data in the admin Submissions view. This makes it possible for unauthenticated attackers to inject arbitrary JavaScript through a form submission that executes in the browser of an administrator who views the submission details.

SeverityHigh
CVSS7.2
Exploit probability—
ProductForm Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder
PublishedApr 14, 2026
First seenApr 14, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
10web Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builderv ≤ 1.15.40—

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CVE-2026-4388 · Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder · Dark Radar