Cross-Site Scripting in react-dom
Affected versions of react-dom are vulnerable to Cross-Site Scripting (XSS). The package fails to validate attribute names in HTML tags which may lead to Cross-Site Scripting in specific scenarios. This may allow attackers to execute arbitrary JavaScript in the victim's browser. To be affected by this vulnerability, the application needs to:
- be a server-side React app
- be rendered to HTML using
ReactDOMServer - include an attribute name from user input in an HTML tag
Recommendation
If you are using react-dom 16.0.x, upgrade to 16.0.1 or later.
If you are using react-dom 16.1.x, upgrade to 16.1.2 or later.
If you are using react-dom 16.2.x, upgrade to 16.2.1 or later.
If you are using react-dom 16.3.x, upgrade to 16.3.3 or later.
If you are using react-dom 16.4.x, upgrade to 16.4.2 or later.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | react-dom | >= 16.0.0, < 16.0.1, >= 16.1.0, < 16.1.2, >= 16.2.0, < 16.2.1, >= 16.3.0, < 16.3.3, >= 16.4.0, < 16.4.2 | 16.0.1, 16.1.2, 16.2.1, 16.3.3, 16.4.2 |
References
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- npm
- Package
react-dom- Disclosed
- 04.01.2019
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mvjj-gqq2-p4hw - CC BY 4.0
Vulnerability history: react-dom
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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