User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission <= 4.3.13

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '<taxonomy_field_name> (default: 'category')' parameter in all versions up to, and including, 4.3.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the target installation to have configured a Taxonomy field in text-input mode with guest post submission enabled on at least one frontend form.

Exploits & detection

No public PoC or detection template found yet.

Timeline

• Published: 07 Nov 2026
• Last modified upstream: 07 Nov 2026

Sources & licenses

Vulnerability data

Wordfence Intelligence — record ↗ · Copyright Defiant Inc.

CVE / CVSS / CWE

NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.

Exploitation

CISA KEV (CC0) · EPSS by FIRST.org

References used for the analysis

• wordfence User Frontend <= 4.3.13 - Unauthenticated Stored Cross-Site Scripting via Taxonomy Field Text-Input
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/admin/form-builder/assets/js/form-builder.js#L666
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/admin/form-builder/views/post-form-settings.php#L498
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/admin/html/form-settings-post.php#L118
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Ajax.php#L26
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Ajax/Frontend_Form_Ajax.php#L36
• https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Traits/FieldableTrait.php#L745
• https://plugins.trac.wordpress.org/changeset?reponame=&new=3770255%40wp-user-frontend%2Ftags%2F4.3.14&old=3722911%40wp-user-frontend%2Ftags%2F4.3.13
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ca1837a4-ea04-4a82-aadb-43e9cff28833?source=cve

Analysis, summary and remediation

© VulnCrest

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