CVE-2026-16256
Received Received - Intake

Unauthenticated Admin Account Creation in POUCO Import Users WordPress Plugin

Publication date: 2026-08-02

Last updated on: 2026-08-02

Assigner: WPScan

Description
The POUCO Import Users WordPress plugin through 1.0.0 does not perform any capability or nonce checks on AJAX actions available to unauthenticated users that create and update WordPress accounts, and it trusts an attacker-supplied role value, allowing unauthenticated attackers to create a new administrator account and take over the site.

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Meta Information

Published
2026-08-02
Last Modified
2026-08-02
Generated
2026-08-02
AI Q&A
2026-08-02
EPSS Evaluated
N/A
NVD
CVE-2026-16256
EUVD
EUVD-2026-51938

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
pouco pouco_import_users 1.0.0

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 POUCO Import Users WordPress plugin allows unauthenticated attackers to create or update WordPress accounts without proper checks. The plugin fails to verify user capabilities or nonce tokens for AJAX actions, and it accepts attacker-controlled role values, enabling the creation of an administrator account to take over the site.

Detection Guidance

Check for unauthorized administrator accounts in WordPress by reviewing user roles in the database or admin panel. Look for suspicious AJAX requests to /wp-admin/admin-ajax.php with actions like poco_import_users_create_user or poco_import_users_update_user.

Impact Analysis

An attacker could exploit this to gain full control of your WordPress site by creating an admin account. This could lead to unauthorized content changes, data theft, malware installation, or disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating GDPR (data protection) and HIPAA (health data security) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Immediately deactivate the POUCO Import Users plugin. Remove any unauthorized administrator accounts. Update WordPress core, themes, and plugins to the latest versions. Monitor for further suspicious activity.

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