Security Advisory
CVE-2023-5654
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
The React Developer Tools extension registers a message listener with window.addEventListener(message, <listener>) in a content script that is accessible to any webpage that is active in the browser. Within the listener is code that requests a URL derived from the received message via fetch(). The URL is not validated or sanitised before it is fetched, thus allowing a malicious web page to arbitrarily fetch URL’s via the victims browser.