Remote Code Execution Vulnerability in WP Libre Form Plugin by WordPress
CVE-2026-118423

10CRITICAL

Key Information:

Vendor

WordPress
Status
WP Libre Form
Vendor
CVE Published:
6 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-118423?

The WP Libre Form plugin version 1.5.0.1 fails to properly validate uploaded file types, allowing unauthenticated users to upload malicious PHP files to accessible directories. This flaw can lead to unauthorized execution of remote code, compromising the security of the web application and potentially affecting the server.

Affected Version(s)

WP Libre Form 1.5.0.1

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-2026-118423 - Proof of Concept

References

https://wpscan.com/vulnerability/35149a79-aee1-4f13-ba29-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Enrico Marcolini
Claudio Marchesini
Dottor Marc
WPScan
.