React applications which rendered to HTML using the ReactDOMServer API were not escaping user-supplied attribute names at render-time. That lack of escaping could lead to a cross-site scripting vulnerability. This issue affected minor releases 16.0.x, 16.1.x, 16.2.x, 16.3.x, and 16.4.x. It was fixed in 16.0.1, 16.1.2, 16.2.1, 16.3.3, and 16.4.2.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| react-dom(npm) | 16.0.0 | 16.0.1 | N/A |
| react-dom(npm) | 16.1.0 | 16.1.2 | N/A |
| react-dom(npm) | 16.2.0 | 16.2.1 | N/A |
| react-dom(npm) | 16.3.0 | 16.3.3 | N/A |
| react-dom(npm) | 16.4.0 | 16.4.2 | N/A |
CVSS Metrics
