CVE-2026-42412

User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.1 - Missing Authorization

2026-04-27 00:00

Strategic Overview

Status: Patched in 4.3.2
Affected Plugin: User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission
Affected Version: <= 4.3.1
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-42412

View all User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission vulnerabilities

At a glance

CVE-2026-42412 is a medium-severity Missing Authorization vulnerability in the User Frontend WordPress plugin, affecting versions <= 4.3.1. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.3.2; sites on affected versions should update now. Disclosed April 2026, reported by Sajjad Haqi.

Vulnerability Overview

The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 4.3.1. This makes it possible for unauthenticated attackers to perform an unauthorized action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in User Frontend <= 4.3.1 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For User Frontend the fix is 4.3.2: builds <= 4.3.1 are affected, anything from 4.3.2 onward is not.

Remediation

Update to version 4.3.2, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: User Frontend 4.3.2 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-42412 https://www.wordfence.com/threat-intel/vulnerabilities/id/6844c9a6-b25a-4ae1-96f6-023c1df80ddf https://nvd.nist.gov/vuln/detail/CVE-2026-42412

Related records

Same weakness class

Other vulnerabilities in User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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