What is CVE-2026-109982?

CVE-2026-109982 is a medium-severity vulnerability in Mb Custom Post Types & Taxonomies, classified under Missing Authorization. CVSS score: 4.2/10. Published 2026-10-16.

How severe is CVE-2026-109982?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Auth bypass in Mb Custom Post Types & Taxonomies

CVE-2026-109982

The MB Custom Post Types & Custom Taxonomies WordPress plugin before 2.12.2 does not perform a capability check or validate a nonce on its migration actions, allowing any authenticated user, such as a subscriber, to trigger a one-way migration that creates published records and permanently deletes a companion MB Custom Post Types & Custom Taxonomies WordPress plugin before 2.12.2's entire post-type and taxonomy configuration.

Vulnerability class: Broken Access Control

Published 2026-10-16 · last modified 2026-10-16.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Mb Custom Post Types & Taxonomies

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wpscan.com/vulnerability/27787d4e-1633-4eb6-bcf4-0a8586df3d47/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-109982?: CVE-2026-109982 is a medium-severity vulnerability in Mb Custom Post Types & Taxonomies, classified under Missing Authorization. CVSS score: 4.2/10. Published 2026-10-16.
How severe is CVE-2026-109982?: Medium severity. CVSS v3 base score is 4.2 out of 10.