CVE-2026-14568 in User Frontend AI Powered Frontend Post Submission
Summary
by MITRE • 07/27/2026
The User Frontend: AI Powered Frontend Post Submission, User Directory, User Profile, Membership & User Registration WordPress plugin before 4.3.8 does not correctly verify ownership before deleting an attachment, allowing unauthenticated attackers to permanently delete author-less attachments such as guest uploads and User Frontend: AI Powered Frontend Post Submission, User Directory, User Profile, Membership & User Registration WordPress plugin before 4.3.8-installed placeholder media.
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Analysis
by VulDB Data Team • 07/27/2026
The vulnerability resides in the User Frontend WordPress plugin version 4.3.7 and earlier, where improper access control mechanisms fail to validate ownership permissions when processing attachment deletion requests. This weakness specifically affects the plugin's handling of media files that lack clear authorship attribution, including guest-uploaded content and placeholder media assets that are automatically generated during user registration or profile creation processes. The flaw exists within the plugin's core file management system where deletion operations bypass essential authentication checks that should verify whether the requesting entity has legitimate authorization to remove specific media attachments.
The technical implementation of this vulnerability stems from inadequate input validation and permission verification within the plugin's attachment management functions. When users submit posts or update profiles through the frontend interface, the system generates various media files including temporary placeholders and user-generated content. The deletion endpoint fails to cross-reference the requested attachment against valid ownership claims, allowing any unauthenticated attacker to submit deletion requests for attachments that do not have clear author associations. This issue is particularly dangerous because it targets attachments that are often created automatically by the plugin's frontend processes without explicit user authentication or session validation.
The operational impact of this vulnerability extends beyond simple data loss scenarios as attackers can exploit this weakness to disrupt user experience and potentially compromise system integrity. By deleting guest-uploaded media files, attackers can remove valuable content that users have contributed through the platform's frontend interfaces. The permanent deletion of placeholder media assets can also affect system functionality by removing necessary components required for proper user registration or profile management processes. This vulnerability directly violates security principles outlined in the CWE-284 access control weakness classification, which specifically addresses improper access control mechanisms that allow unauthorized users to perform privileged operations.
Security implications include potential denial of service conditions where critical frontend functionality becomes impaired due to missing placeholder assets, as well as broader system stability issues when automated user registration processes encounter missing media dependencies. The vulnerability creates opportunities for attackers to manipulate the user directory and profile systems by removing associated media files, potentially leading to inconsistent user data states and compromised user experience. Organizations using this plugin version face increased risk of service disruption and potential data integrity issues that could affect their WordPress installations' overall security posture.
Mitigation strategies should prioritize immediate plugin updates to version 4.3.8 or later, which addresses the ownership verification flaw through enhanced authentication checks before deletion operations. System administrators should implement additional monitoring of attachment deletion activities to detect unauthorized access attempts, while also reviewing and strengthening overall WordPress security configurations. The vulnerability aligns with ATT&CK technique T1485 data destruction where adversaries may delete files to disrupt system availability and user access. Organizations should also consider implementing automated backup solutions for critical frontend media assets and establishing proper access control policies that prevent unauthorized modifications to user-generated content. Regular security audits of WordPress plugins should include verification of file management permissions and access control implementations to prevent similar vulnerabilities from emerging in other third-party components.