CVE-2026-16256: CWE-269 Improper Privilege Management in POUCO Import Users
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.
AI Analysis
Technical Summary
CVE-2026-16256 is an improper privilege management vulnerability (CWE-269) in the POUCO Import Users WordPress plugin through version 1.0.0. The plugin fails to perform capability or nonce verification on AJAX actions accessible to unauthenticated users. This lack of validation allows attackers to create new WordPress accounts and assign themselves elevated roles, including administrator, effectively compromising the site.
Potential Impact
An unauthenticated attacker can create a new administrator account on a vulnerable WordPress site, resulting in complete site compromise including full control over content, settings, and user management. The CVSS score of 9.8 reflects the critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation has been published yet. Users should monitor the vendor's advisory for updates and consider disabling or removing the POUCO Import Users plugin until a fix is available. Restricting access to AJAX endpoints via web application firewall rules may provide temporary mitigation.
CVE-2026-16256: CWE-269 Improper Privilege Management in POUCO Import Users
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.
CVSS v3.1
Score 9.8critical
Affected software
POUCO Import Users
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16256 is an improper privilege management vulnerability (CWE-269) in the POUCO Import Users WordPress plugin through version 1.0.0. The plugin fails to perform capability or nonce verification on AJAX actions accessible to unauthenticated users. This lack of validation allows attackers to create new WordPress accounts and assign themselves elevated roles, including administrator, effectively compromising the site.
Potential Impact
An unauthenticated attacker can create a new administrator account on a vulnerable WordPress site, resulting in complete site compromise including full control over content, settings, and user management. The CVSS score of 9.8 reflects the critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation has been published yet. Users should monitor the vendor's advisory for updates and consider disabling or removing the POUCO Import Users plugin until a fix is available. Restricting access to AJAX endpoints via web application firewall rules may provide temporary mitigation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-20T08:25:18.184Z
- State
- PUBLISHED
Threat ID: 6a6f99cabf32cb7a344bda52
Added to database: 08/02/2026, 19:26:02 UTC
Last enriched: 08/10/2026, 14:26:38 UTC
Last updated: 09/15/2026, 10:01:30 UTC
Views: 58
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