CVE-2023-5654
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductFacebook React-devtools
PublishedOct 19, 2023
First seenOct 19, 2023
Weakness typeCWE-285CWE-285
How to fix
Update
- facebook react-devtools4.28.4 or later
- react-devtools-core4.28.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| facebook react-devtools | v < 4.28.4 | 4.28.4 |
| react-devtools-corenpm | v < 4.28.4 | 4.28.4 |
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