๐Ÿ” CVE Alert

CVE-2026-12406

MEDIUM 5.3

User Frontend <= 4.3.7 - Missing Authorization to Unauthenticated Arbitrary Attachment Deletion via 'attach_id' Parameter

CVSS Score
5.3
EPSS Score
0.3%
EPSS Percentile
24th

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.

CWE CWE-862
Vendor wedevs
Product user frontend: ai powered frontend posting, user directory, profile builder, membership & user registration
Published Jul 9, 2026
Last Updated Jul 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

wedevs / User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration
0 โ‰ค 4.3.7

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/0049583a-0ad3-45e4-a29e-4b8c33d09857?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.7/includes/Ajax/Upload_Ajax.php#L271 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.7/includes/Ajax/Upload_Ajax.php#L257 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.7/includes/Ajax.php#L27 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.7/includes/Frontend.php#L88 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.2/includes/Ajax/Upload_Ajax.php#L271 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.2/includes/Ajax/Upload_Ajax.php#L257 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.2/includes/Ajax.php#L27 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.2/includes/Frontend.php#L88 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?reponame=&old=3578622%40wp-user-frontend&new=3578622%40wp-user-frontend

Credits

mrvincere