CVE-2026-110010
MediumCVSS 4.8Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
The MB Custom Post Types & Custom Taxonomies WordPress plugin before 2.12.3 does not perform any capability or authentication check before allowing an unauthenticated request to re-run a legacy data migration, letting anyone revert a custom post type or taxonomy definition on sites upgraded from a pre-2.0 release back to its pre-upgrade state.
Risk Assessment
This discards configuration changes an administrator made after upgrading and, where those changes had restricted a definition's visibility, silently re-exposes the definition and its content to anonymous visitors.
Recommendation
Update the MB Custom Post Types & Custom Taxonomies plugin to version 2.12.3 or later. Verify that post type and taxonomy configurations have not been reverted.
Other vulnerabilities in MB Custom Post Types & Custom Taxonomies WordPress plugin
See all- CVE-2026-110011Low
The MB Custom Post Types & Custom Taxonomies WordPress plugin before 2.12.3 does not perform a capability check in its export feature. This allows users with a role as low as Contributor to read the configuration of admin-only custom post types and taxonomies, as well as the titles, dates, statuses and some stored content of other users' non-public posts and pages.
- CVE-2026-109982Medium
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. This allows any authenticated user, such as a subscriber, to trigger a one-way migration that creates published records and permanently deletes the plugin's entire post-type and taxonomy configuration.
Original NVD description (English source)
The MB Custom Post Types & Custom Taxonomies WordPress plugin before 2.12.3 does not perform any capability or authentication check before allowing an unauthenticated request to re-run a legacy data migration, letting anyone revert a custom post type or taxonomy definition on sites upgraded from a pre-2.0 release back to its pre-upgrade state. This discards configuration changes an administrator made after upgrading and, where those changes had restricted a definition's visibility, silently re-exposes the definition and its content to anonymous visitors.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS