Role Assignment Vulnerability in Post Duplicator Plugin from WordPress
CVE-2026-121875

Currently unrated

Key Information:

Vendor

WordPress
Status
Post Duplicator
Vendor
CVE Published:
9 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-121875?

The Post Duplicator plugin for WordPress, prior to version 3.0.18, lacks proper validation of role capabilities due to ineffective permissions settings. This vulnerability permits a site administrator, who is not a Super Admin on a multisite environment, to inadvertently or maliciously assign arbitrary capabilities, including those that are intended solely for Super Admins. Consequently, this oversight could lead to unauthorized access and control over sensitive network management functions, presenting a significant risk to the security and integrity of multisite installations.

Affected Version(s)

Post Duplicator 0 < 3.0.18

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-2026-121875 - Proof of Concept

References

https://wpscan.com/vulnerability/543db6f0-78dd-4c18-ac64-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Karthik Ramakrishnan
WPScan
.