CVE-2026-12406
Received Received - Intake

Authorization Bypass in User Frontend WordPress Plugin

Publication date: 2026-07-09

Last updated on: 2026-07-09

Assigner: Wordfence

Description
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to delete arbitrary media attachments whose post_author is 0, such as guest and registration-form uploads, via the wpuf_file_del AJAX action. This is exploitable by unauthenticated visitors on any site where a WPUF shortcode is rendered on a front-end page, as this causes the valid wpuf_nonce value to be localized into publicly accessible JavaScript objects (wpuf_upload and wpuf_frontend), satisfying the sole access control gate.

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Meta Information

Published
2026-07-09
Last Modified
2026-07-09
Generated
2026-07-09
AI Q&A
2026-07-09
EPSS Evaluated
N/A
NVD
CVE-2026-12406
EUVD
EUVD-2026-42537

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_user_frontend wp_user_frontend to 4.3.7 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The vulnerability exists in the User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress, versions up to and including 4.3.7.

It is an authorization bypass issue caused by the plugin not properly verifying if a user is authorized to perform certain actions.

This flaw allows unauthenticated attackers to delete arbitrary media attachments whose post_author is 0, such as guest and registration-form uploads, by exploiting the wpuf_file_del AJAX action.

The vulnerability is exploitable on any site where a WPUF shortcode is rendered on a front-end page, because the valid wpuf_nonce value is exposed in publicly accessible JavaScript objects, which bypasses the access control.

Impact Analysis

This vulnerability can allow unauthenticated attackers to delete media attachments on your WordPress site that are associated with guest or registration-form uploads.

While it does not impact confidentiality or availability directly, it can lead to loss of user-uploaded content and potentially disrupt user experience or site functionality.

Since the attacker does not need to be authenticated, any visitor to the site can exploit this vulnerability if the vulnerable plugin and shortcode are present.

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