Server-Side Request Forgery Vulnerability in Import and Export Users and Customers Plugin
CVE-2026-16542

4.1MEDIUM

Key Information:

Vendor

WordPress
Status
Import And Export Users And Customers
Vendor
CVE Published:
20 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16542?

The Import and Export Users and Customers plugin for WordPress prior to version 2.4.5 lacks proper validation for user-supplied URLs during server-side requests for CSV imports. This oversight allows high-privileged users to perform Server-Side Request Forgery (SSRF) attacks, potentially leading to unauthorized access to internal resources or sensitive data. It is crucial for site administrators to ensure they update to the latest version to mitigate this risk.

Affected Version(s)

Import and export users and customers 0 < 2.4.5

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-2026-16542 - Proof of Concept

References

https://wpscan.com/vulnerability/f57577b2-3031-433a-a3e1-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Binesh Madharapu
WPScan
.