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Cross-Site Scripting in react-dom

Moderate severity GitHub Reviewed Published Jan 4, 2019 to the GitHub Advisory Database • Updated Sep 13, 2023

Package

npm react-dom (npm)

Affected versions

= 16.0.0
>= 16.1.0, < 16.1.2
= 16.2.0
>= 16.3.0, < 16.3.3
>= 16.4.0, < 16.4.2

Patched versions

16.0.1
16.1.2
16.2.1
16.3.3
16.4.2

Description

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.

References

Published to the GitHub Advisory Database Jan 4, 2019
Reviewed Jun 16, 2020
Last updated Sep 13, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.084%
(37th percentile)

Weaknesses

CVE ID

CVE-2018-6341

GHSA ID

GHSA-mvjj-gqq2-p4hw

Source code

No known source code
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