The Portfolio for Elementor WordPress plugin before 2.3.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.
https://wpscan.com/vulnerability/a21dc4a3-a4f3-4619-b8a3-493a27e14ccb