Vulnerability Details : CVE-2023-5654
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.
Products affected by CVE-2023-5654
- cpe:2.3:a:facebook:react-devtools:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-5654
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-5654
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
3.9
|
2.5
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
3.9
|
2.5
|
Snyk |
CWE ids for CVE-2023-5654
-
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
-
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.Assigned by: report@snyk.io (Secondary)
References for CVE-2023-5654
-
https://gist.github.com/CalumHutton/1fb89b64409570a43f89d1fd3274b231
React Developer Tools v4.27.8 Arbitrary URL Fetch via Malicious Web Page · GitHubPatch;Third Party Advisory
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