Provide references for CVE-2021-36857.
Where can I find more information about CVE-2021-36857?
References are available at: https://patchstack.com/database/vulnerability/testimonial-builder/wordpress-testimonial-builder-plugin-1-6-1-authenticated-stored-cross-site-scripting-xss-vulnerability, https://wordpress.org/plugins/testimonial-builder/#developers.