The Tag, Category, and Taxonomy Manager WordPress plugin before 3.51.0 does not verify that a user is authorized to access a referenced post before processing it and returning derived data, allowing users with contributor privileges to disclose data from private or draft posts they do not own.

The Tag, Category, and Taxonomy Manager – AI Autotagger with OpenAI plugin for WordPress is vulnerable to time-based SQL Injection via the "getTermsForAjax" function in all versions up to, and including, 3.40.1. This is due to insufficient escaping on the user supplied parameters and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database granted they have metabox access for the taxonomy (enabled by default for contributors).

The Tag, Category, and Taxonomy Manager – AI Autotagger with OpenAI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.40.1. This is due to the plugin not properly verifying that a user is authorized to perform an action in the "taxopressmergetermsbatch" function. This makes it possible for authenticated attackers, with subscriber level access and above, to merge or delete arbitrary taxonomy terms.

The WordPress Tag, Category, and Taxonomy Manager WordPress plugin before 3.30.0 does not sanitise and escape some of its Widgets settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed (for example in multisite setup).

The TaxoPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Related Posts functionality in versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Editor+ permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The TaxoPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Related Posts functionality in versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Editor+ permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The TaxoPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Suggest Terms Title field in versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Editor+ permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The TaxoPress – Create and Manage Taxonomies, Tags, Categories WordPress plugin before 3.0.7.2 does not sanitise its Taxonomy description field, allowing high privilege users to set JavaScript payload in them even when the unfilteredhtml capability is disallowed, leading to an authenticated Stored Cross-Site Scripting issue.