The WPCS – WordPress Currency Switcher Professional plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's wpcscurrentcurrency shortcode in versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WPCS – WordPress Currency Switcher Professional plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save function in versions up to, and including, 1.1.9. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to edit an arbitrary custom drop-down currency switcher.

The WPCS – WordPress Currency Switcher Professional plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the create function in versions up to, and including, 1.1.9. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to create a custom drop-down currency switcher.