CVE-2026-16256 Pouco Import Users <= 1.0.0 - Unauthenticated Privilege Escalation
Unauthenticated attackers can create administrator accounts and take over the site due to missing capability checks in the POUCO Import Users plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16256?
CVE-2026-16256 is a critical vulnerability in Unknown POUCO Import Users, published on 2 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-16256?
How do I fix CVE-2026-16256?
No fix has been published for CVE-2026-16256 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16256 being exploited?
There is no known exploitation of CVE-2026-16256 in the wild and no public exploit code.
Sources
Also known as GHSA-vrg4-ffx9-cfhg.