The Google Map Shortcode WordPress plugin through 3.1.2 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 admin
https://wpscan.com/vulnerability/92dcbeb3-17db-4d10-8ae7-c99acdb48c78