Attack Vectors

CVE-2026-24364 is a medium-severity missing-authorization issue (CVSS 4.3) affecting User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration (WordPress plugin slug: wp-user-frontend) in versions up to and including 4.2.5.

The most likely attack path is through a normal login: an attacker only needs an authenticated account (Subscriber-level access or higher) to attempt the unauthorized action enabled by the plugin’s missing capability check. This is especially relevant for organizations running membership, customer portals, community sites, or any environment where many users can self-register.

Because the CVSS vector indicates no user interaction is required (UI:N) and the attack is network-accessible (AV:N), abuse can occur quickly after an attacker gains (or creates) a low-privilege account.

Security Weakness

The vulnerability is caused by a missing capability check in a plugin function. In practical terms, the plugin does not properly confirm that the logged-in user is authorized to perform a particular action before executing it.

This type of weakness is a form of broken access control: it can allow users with minimal privileges to trigger functionality intended for higher-trust roles (for example, administrators or site managers), depending on how the affected function is used in your environment.

Remediation is straightforward: update to version 4.2.6 or newer, where the issue is patched. Reference: CVE record and Wordfence advisory.

Technical or Business Impacts

While the published details do not specify the exact unauthorized action, missing-authorization issues typically create risk in areas such as improper changes to site behavior, workflow manipulation, or unauthorized operations performed by accounts that should not have that power. Even when limited in scope (CVSS indicates low integrity impact), it can still disrupt marketing operations and site governance.

For marketing directors and business owners, the main concern is loss of control over customer-facing experiences: membership journeys, frontend posting flows, user directories, profile content, and registration processes can be targeted because they sit at the intersection of brand trust and lead/customer acquisition.

From a risk and compliance perspective, the presence of a privilege boundary failure can increase exposure to policy violations (e.g., improper user actions not aligned with role-based access rules) and incident response costs (investigation, log review, and potential user communications), even if there is no indication of data theft in the CVSS scoring (C:N).

Similar Attacks

Missing-authorization and access-control issues are common in the WordPress ecosystem. Examples of real, documented cases include:

CVE-2018-19207 (WP GDPR Compliance) – privilege/authorization weakness
CVE-2019-14343 (ThemeGrill Demo Importer) – missing authorization leading to severe impact