CVE-2023-5654 React Developer Tools extension Improper Authorization vulnerability
A malicious webpage can force the React Developer Tools extension to fetch arbitrary URLs, enabling Server-Side Request Forgery attacks via the victim's browser.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5654?
CVE-2023-5654 is a medium-severity server-side request forgery vulnerability in Meta React Developer Tools Extension, published on 19 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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 victim's browser.
Which versions are affected by CVE-2023-5654?
2 open source packages ship an affected version, including react-devtools-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
react-devtools-core npm | All versions | 4.28.4 |
react-devtools-core npm | All versions | 4.28.4 |
Products include Facebook React-Devtools.
How do I fix CVE-2023-5654?
Upgrade react-devtools-core to 4.28.4 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2023-5654 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5654 exists.
Sources
Also known as GHSA-rxrc-rgv4-jpvx.