Unauthenticated Migration Vulnerability in MB Custom Post Types Plugin for WordPress
CVE-2026-109982

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
16 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-109982?

The MB Custom Post Types & Custom Taxonomies plugin for WordPress prior to version 2.12.2 is susceptible to a vulnerability that permits authenticated users, even those with minimal permissions such as subscribers, to execute uncontrolled migration actions. This can result in the creation of published records while permanently deleting all associated configurations for post types and taxonomies, effectively compromising the site’s data integrity and structure.

Affected Version(s)

MB Custom Post Types & Custom Taxonomies 0 < 2.12.2

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.

References

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Naoki Kawahigashi
WPScan
.