Description
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.7 via the 'wpuf_files_data' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to overwrite the post_title, post_content, and post_excerpt of any arbitrary post on the site, including posts authored by administrators. Exploitation requires access to any WPUF post submission form; this is achievable by users with no WordPress role, as the wpuf_submit_post AJAX action is gated only by a nonce with no capability check for the downstream post-edit operation.
Problem types
CWE-639 Authorization Bypass Through User-Controlled Key
Product status
Any version
Timeline
| 2026-06-16: | Vendor Notified |
| 2026-07-08: | Disclosed |
Credits
Kim ChanYeop
References
www.wordfence.com/...-b67e-4227-95fe-69b40551af61?source=cve
plugins.trac.wordpress.org/...udes/Traits/FieldableTrait.php
plugins.trac.wordpress.org/...es/Ajax/Frontend_Form_Ajax.php
plugins.trac.wordpress.org/...udes/Traits/FieldableTrait.php
plugins.trac.wordpress.org/...udes/Traits/FieldableTrait.php
plugins.trac.wordpress.org/...es/Ajax/Frontend_Form_Ajax.php
plugins.trac.wordpress.org/...udes/Traits/FieldableTrait.php
plugins.trac.wordpress.org/...new=3578622%40wp-user-frontend