CVE-2026-109982: CWE-862 Missing Authorization in MB Custom Post Types & Custom Taxonomies
Description
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.
CVSS v3.1
Score 4.2medium
Affected software
MB Custom Post Types & Custom Taxonomies
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-109982 is a missing authorization vulnerability (CWE-862) in the MB Custom Post Types & Custom Taxonomies WordPress plugin prior to version 2.12.2. The plugin fails to perform capability checks or validate nonces on its migration actions. As a result, any authenticated user can trigger a one-way migration process that creates published records and irreversibly deletes the entire post-type and taxonomy configuration managed by the plugin.
Potential Impact
An attacker with any authenticated user privileges, including subscriber-level access, can exploit this vulnerability to cause permanent deletion of the plugin's post-type and taxonomy configurations. This can disrupt site functionality and cause data loss related to custom post types and taxonomies.
Mitigation Recommendations
Upgrade the MB Custom Post Types & Custom Taxonomies plugin to version 2.12.2 or later, where this authorization issue has been addressed. No other mitigation is indicated. Patch status is confirmed by the version boundary in the affectedVersions field.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-10-13T12:10:03.110Z
- State
- PUBLISHED
Threat ID: 6ad1c55c2cdf04f656c2cfe0
Added to database: 10/16/2026, 06:34:04 UTC
Last enriched: 10/16/2026, 06:49:05 UTC
Last updated: 10/16/2026, 19:03:29 UTC
Views: 14
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