Answer in brief
CVE-2018-6341 records a Medium severity (CVSS 6.1) vulnerability in Cross-Site Scripting in react-dom. The current sources do not mark it as known exploited. The current feed maps react-dom (npm), react-dom (npm), react-dom (npm), react-dom (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps react-dom (npm), react-dom (npm), react-dom (npm), react-dom (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| react-domnpm | >=16.1.0,<16.1.2 | 16.1.2 |
| react-domnpm | =16.2.0 | 16.2.1 |
| react-domnpm | >=16.3.0,<16.3.3 | 16.3.3 |
| react-domnpm | >=16.4.0,<16.4.2 | 16.4.2 |
| react-domnpm | =16.0.0 | 16.0.1 |
Published upstream
Jan 4, 2019
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Sep 13, 2023
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.