WP Inventory Manager < 2.1.0.13 - Reflected Cross-Site Scripting

The plugin does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting.

PoC

1. Go to WP Inventory > Inventory Items and create a new Inventory Item. 2. Create a page and add the [wpinventory] shortcode. 3. View the new page on the frontend, and click on the new Inventory Item. 3. Add the URL parameters: display=false&message;=%3Cscript%3Ealert(/xss/)%3C/script%3E, and load the page.