CVE-2026-16736
Received Received - Intake

Unauthenticated Account Creation in User Registration & Membership WordPress Plugin

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: WPScan

Description
The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration.

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-16736
EUVD
EUVD-2026-53108

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wpengine user_registration_and_membership 5.2.6
wpengine user_registration_and_membership to 5.2.6 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the User Registration & Membership WordPress plugin before version 5.2.6 allows unauthenticated users to create new accounts even when the site administrator has disabled open registration. The plugin fails to enforce the registration-disabled setting during form submissions.

Detection Guidance

Check if the User Registration & Membership plugin version is 5.2.6 or earlier. If so, the site is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' if using WP-CLI to verify the plugin version.

Impact Analysis

This vulnerability could allow unauthorized users to create accounts on your WordPress site, potentially leading to spam, unauthorized access, or other malicious activities. It bypasses the intended restriction set by the site administrator.

Compliance Impact

This vulnerability could potentially violate compliance with standards like GDPR and HIPAA by allowing unauthorized account creation. Uncontrolled user registration may lead to unauthorized access to personal data, violating data protection requirements under these regulations.

Mitigation Strategies

Update the User Registration & Membership plugin to version 5.2.6 or later immediately. Disable open registration in WordPress settings if not needed. Monitor for unauthorized account creations.

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