Most recent entries from all

EUVD-2026-273597

fkie_cve-2026-27612

Repostat is a React component to fetch and display GitHub repository info. Prior to version 1.0.1, the `RepoCard` component is vulnerable to Reflected Cross-Site Scripting (XSS). The vulnerability occurs because the component uses React's `dangerouslySetInnerHTML` to render the repository name (`repo` prop) during the loading state without any sanitization. If a developer using this package passes unvalidated user input directly into the `repo` prop (for example, reading it from a URL query parameter), an attacker can execute arbitrary JavaScript in the context of the user's browser. In version 1.0.1, the use of dangerouslySetInnerHTML has been removed, and the repo prop is now safely rendered using standard React JSX data binding, which automatically escapes HTML entities.

GHSA-fm8c-6m29-rp6j — repostat: Reflected Cross-Site Scripting (XSS) via repo prop in RepoCard

Affected: npm: repostat

### Impact The `RepoCard` component is vulnerable to Reflected Cross-Site Scripting (XSS). The vulnerability occurs because the component uses React's `dangerouslySetInnerHTML` to render the repository name (`repo` prop) during the loading state without any sanitization.

If a developer using this package passes unvalidated user input directly into the `repo` prop (for example, reading it from a URL query parameter), an attacker can execute arbitrary JavaScript in the context of the user's browser.

### Proof of Concept ```jsx import { RepoCard } from 'repostat';

function App() { const params = new URLSearchParams(window.location.search); const maliciousRepo = params.get('repo') || 'facebook/react';

return <RepoCard repo={maliciousRepo} token="YOUR_TOKEN" />; } ```

### Remediation Update to version 1.0.1. The use of dangerouslySetInnerHTML has been removed, and the repo prop is now safely rendered using standard React JSX data binding, which automatically escapes HTML entities.