Overview
- 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.
- Source
- report@snyk.io
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 2.5
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Severity
- MEDIUM
Weaknesses
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:facebook:react-devtools:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2100C135-FD9A-4DE3-A140-CD93B20C5365",
"versionEndExcluding": "4.28.4"
}
],
"operator": "OR"
}
]
}
]