The MultiVendorX – The Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress is vulnerable to Limited Local File Inclusion in all versions up to, and including, 4.2.14 via the tabname parameter. This makes it possible for unauthenticated attackers to include PHP files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where PHP files can be uploaded and included

The MarketKing — Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin's settings in all versions up to, and including, 1.9.80 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Shop Manager-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The MarketKing — Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress is vulnerable to unauthorized access due to missing capability checks on several functions like 'marketking_delete_team_member', 'marketkingrejectuser', 'marketking_save_profile_settings', and many more in all versions up to, and including, 2.0.00. This makes it possible for unauthenticated attackers to delete users, update settings, approve users, and more.

The MultiVendorX – The Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.2.4. This is due to missing or incorrect nonce validation on several functions in api/class-mvx-rest-controller.php. This makes it possible for unauthenticated attackers to update vendor account details, create vendor accounts, and delete arbitrary users via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The MultiVendorX – The Ultimate WooCommerce Multivendor Marketplace Solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'mvx_sent_deactivation_request' function in all versions up to, and including, 4.2.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to send a canned email to the site's administrator asking to delete the profile of an arbitrary vendor.

The WooCommerce Multivendor Marketplace – REST API plugin for WordPress is vulnerable to unauthorized access of data and addition of data due to a missing capability check on the 'get_item', 'get_order_notes' and 'add_order_note' functions in versions up to, and including, 1.5.3. This makes it possible for authenticated attackers with subscriber privileges or above, to view the order details and order notes, and add order notes.

The Multivendor Marketplace Solution for WooCommerce WordPress plugin before 3.8.12 is lacking authorisation and CSRF in multiple AJAX actions, which could allow any authenticated users, such as subscriber to call them and suspend vendors (reporter by the submitter) or update arbitrary order status (identified by WPScan when verifying the issue) for example. Other unauthenticated attacks are also possible, either directly or via CSRF