The WP Inventory Manager WordPress plugin before 2.1.0.13 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting.
https://wpscan.com/vulnerability/44448888-cd5d-482e-859e-123e442ce5c1
https://github.com/daniloalbuqrque/poc-cve-xss-encoded-wp-inventory-manager-plugin