What’s Vulnerable › Vulnerabilities

CVE-2026-4388: Form Maker by 10Web <= 1.15.40 - Unauthenticated Stored Cross-Site Scripting via Matrix Field Text Box

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-14 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• 10web Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder: through 1.15.40

References

• https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/admin/views/FormMakerSubmits.php#L166
• https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/admin/views/FormMakerSubmits.php#L169
• https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/frontend/models/form_maker.php#L2352
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3501693%40form-maker%2Ftrunk&old=3492680%40form-maker%2Ftrunk&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/197449f5-9304-49df-9261-a354145fc00e?source=cve

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