1. Enter the setting page of this plugin.

2. In the input boxes named "Disable Cookie Text", "Background Color", and "Font Color", enter the following value in all the input boxes. The value is: 123" onmouseenter=alert(/XSS/) "

3. Click the 'Save Changes' button on the page.

4. Refresh or re-enter the page and move the mouse over the input box to trigger the XSS.