Privilege escalation in Pouco Import Users
CVE-2026-16256
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.
Vulnerability class: Privilege Escalation
EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Pouco Import Users — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-16256?
- CVE-2026-16256 is a critical-severity vulnerability in Pouco Import Users, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-08-02.
- How severe is CVE-2026-16256?
- Critical severity. CVSS v3 base score is 9.8 out of 10.