Facebook React Devtools vulnerabilities

1 vulnerability

Known vulnerabilities in Facebook React Devtools, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

6.5CVE-2023-5654facebookreact-devtools+2
EPSS score
0.47%
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 victim's browser.