Description The plugin does not sanitise and escape some parameters before outputting them back in the page, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin
patchstack.com/database/vulnerability/ultimate-taxonomy-manager/wordpress-ultimate-taxonomy-manager-plugin-2-0-cross-site-scripting-xss-vulnerability
www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/ultimate-taxonomy-manager/ultimate-taxonomy-manager-20-unauthenticated-cross-site-scripting