CVE-2026-12406: CWE-862 Missing Authorization in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration
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.
AI Analysis
Technical Summary
CVE-2026-12406 is an authorization bypass vulnerability (CWE-862) in the User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration WordPress plugin by wedevs. Versions up to and including 4.3.7 do not properly verify that a user is authorized to perform certain actions. Specifically, unauthenticated attackers can delete arbitrary media attachments whose post_author is 0 by exploiting the wpuf_file_del AJAX action. The vulnerability is facilitated by the exposure of a valid wpuf_nonce in JavaScript objects (wpuf_upload and wpuf_frontend) localized on front-end pages where the WPUF shortcode is rendered, effectively bypassing the intended access control.
Potential Impact
An unauthenticated attacker can delete arbitrary media attachments with a post_author of 0, such as guest or registration-form uploads. This results in integrity loss of media content but does not impact confidentiality or availability. The vulnerability does not allow reading or modifying other data or code, nor does it allow denial of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid rendering the WPUF shortcode on publicly accessible front-end pages to prevent exposure of the valid nonce. Monitor vendor communications for updates and apply patches promptly once released.
CVE-2026-12406: CWE-862 Missing Authorization in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration
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.
CVSS v3.1
Score 5.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12406 is an authorization bypass vulnerability (CWE-862) in the User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration WordPress plugin by wedevs. Versions up to and including 4.3.7 do not properly verify that a user is authorized to perform certain actions. Specifically, unauthenticated attackers can delete arbitrary media attachments whose post_author is 0 by exploiting the wpuf_file_del AJAX action. The vulnerability is facilitated by the exposure of a valid wpuf_nonce in JavaScript objects (wpuf_upload and wpuf_frontend) localized on front-end pages where the WPUF shortcode is rendered, effectively bypassing the intended access control.
Potential Impact
An unauthenticated attacker can delete arbitrary media attachments with a post_author of 0, such as guest or registration-form uploads. This results in integrity loss of media content but does not impact confidentiality or availability. The vulnerability does not allow reading or modifying other data or code, nor does it allow denial of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid rendering the WPUF shortcode on publicly accessible front-end pages to prevent exposure of the valid nonce. Monitor vendor communications for updates and apply patches promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-06-16T14:01:20.960Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4f598768715ace43f21907
Added to database: 07/09/2026, 08:19:19 UTC
Last enriched: 07/16/2026, 10:07:48 UTC
Last updated: 08/22/2026, 22:52:11 UTC
Views: 64
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