File Upload Vulnerability in To Do List Member WordPress Plugin
CVE-2026-86801

8.8HIGH

Key Information:

Vendor

WordPress

Vendor
CVE Published:
17 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86801?

The To Do List Member plugin for WordPress, versions 1.4 to 1.6, features a file upload endpoint that bypasses WordPress's core security features. This vulnerability allows unauthenticated users to upload files without necessary authentication, capability, or nonce checks. The plugin only checks the filename without assessing the file content, enabling attackers to store harmful files on the server. Furthermore, it grants the ability to list and delete uploaded files, posing a significant risk to the website's integrity and security.

Affected Version(s)

To Do List Member 1.4 <= 1.6

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.

References

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pablo González Pérez
Francisco José Ramírez Vicente
Iñigo Sánchez Enciso
WPScan
.