Cross site scripting

react-admin is a frontend framework for building browser applications on top of REST/GraphQL APIs. react-admin prior to versions 3.19.12 and 4.7.6, along with ra-ui-materialui prior to 3.19.12 and 4.7.6, are vulnerable to cross-site scripting. All React applications built with react-admin and using the <RichTextField> are affected. <RichTextField> outputs the field value using dangerouslySetInnerHTML without client-side sanitization. If the data isn’t sanitized server-side, this opens a possible cross-site scripting (XSS) attack. Versions 3.19.12 and 4.7.6 now use DOMPurify to escape the HTML before outputting it with React and dangerouslySetInnerHTML. Users who already sanitize HTML data server-side do not need to upgrade. As a workaround, users may replace the <RichTextField> by a custom field doing sanitization by hand.