CVE-2018-6341
React applications which rendered to HTML using the ReactDOMServer API were not escaping user-supplied attribute names at render-time. That lack of escaping could lead to a cross-site scripting vulnerability. This issue affected minor releases 16.0.x, 16.1.x, 16.2.x, 16.3.x, and 16.4.x. It was fixed in 16.0.1, 16.1.2, 16.2.1, 16.3.3, and 16.4.2.
Date published : 2018-12-31
https://reactjs.org/blog/2018/08/01/react-v-16-4-2.html
We've just released React DOM 16.4.2 to address a security vulnerability (CVE-2018-6341) in ReactDOMServer. https://t.co/NLf5xiiqxX
— React (@reactjs) August 1, 2018