CVE-2025-59057
HIGH7.6EPSS 0.02%React Router has XSS Vulnerability
Published: 1/8/2026Modified: 2/3/2026
Description
A XSS vulnerability exists in in React Router's `meta()`/`<Meta>` APIs in [Framework Mode](https://reactrouter.com/start/modes#framework) when generating `script:ld+json` tags which could allow arbitrary JavaScript execution during SSR if untrusted content is used to generate the tag. > [!NOTE] > This does not impact applications using [Declarative Mode](https://reactrouter.com/start/modes#declarative) (`<BrowserRouter>`) or [Data Mode](https://reactrouter.com/start/modes#data) (`createBrowserRouter`/`<RouterProvider>`).
Affected packages (2)
- npm/react-router>= 7.0.0, < 7.9.0
- npm/@remix-run/react>= 1.15.0, < 2.17.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N |