Provide references for CVE-2021-36839.
Where can I find more information about CVE-2021-36839?
References are available at: https://patchstack.com/database/vulnerability/social-media-buttons-toolbar/wordpress-social-media-follow-buttons-bar-plugin-4-73-authenticated-stored-cross-site-scripting-xss-vulnerability?_s_id=cve, https://wordpress.org/plugins/social-media-buttons-toolbar/.