Unauthorized Account Management in WordPress User Import Plugin
CVE-2026-16534

9.1CRITICAL

Key Information:

Vendor

WordPress
Status
Import And Export Users And Customers
Vendor
CVE Published:
3 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16534?

The Import and Export Users and Customers plugin for WordPress before version 2.4.2 lacks proper enforcement of role-assignment and per-user edit permissions during CSV imports. This oversight allows a user with only basic user-creation rights to not only create a new administrator account but also to overwrite the passwords or emails of existing administrators, posing a significant security risk.

Affected Version(s)

Import and export users and customers 0 < 2.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-16534 - Proof of Concept

References

https://wpscan.com/vulnerability/0d1246a0-3cd1-4b6d-bd3e-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Charles Vosburgh
WPScan
.