CWE
22
EPSS
0.065%
Advisory Published
CVE Published
Updated

CVE-2025-24963: Browser mode serves arbitrary files in vitest

First published: Tue Feb 04 2025(Updated: )

### Summary `__screenshot-error` handler on the browser mode HTTP server that responds any file on the file system. Especially if the server is exposed on the network by [`browser.api.host: true`](https://vitest.dev/guide/browser/config.html#browser-api), an attacker can send a request to that handler from remote to get the content of arbitrary files. ### Details This `__screenshot-error` handler on the browser mode HTTP server responds any file on the file system. https://github.com/vitest-dev/vitest/blob/f17918a79969d27a415f70431e08a9445b051e45/packages/browser/src/node/plugin.ts#L88-L130 This code was added by https://github.com/vitest-dev/vitest/commit/2d62051f13b4b0939b2f7e94e88006d830dc4d1f. ### PoC 1. Create a directory and change the current directory to that directory 1. Run `npx vitest init browser` 1. Run `npm run test:browser` 2. Run `curl http://localhost:63315/__screenshot-error?file=/path/to/any/file` ### Impact Users explicitly exposing the browser mode server to the network by [`browser.api.host: true`](https://vitest.dev/guide/browser/config.html#browser-api) may get any files exposed.

Credit: security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
npm/@vitest/browser>=3.0.0<3.0.4
3.0.4
npm/@vitest/browser>=2.0.4<2.1.9
2.1.9

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Frequently Asked Questions

  • What is the severity of CVE-2025-24963?

    CVE-2025-24963 has a high severity due to the potential for unauthorized file access if the vulnerable server is exposed.

  • How do I fix CVE-2025-24963?

    To fix CVE-2025-24963, upgrade the @vitest/browser package to version 3.0.4 or 2.1.9.

  • What versions of @vitest/browser are affected by CVE-2025-24963?

    CVE-2025-24963 affects @vitest/browser versions from 2.0.4 to 2.1.9 and from 3.0.0 to 3.0.4.

  • What is the impact of exploiting CVE-2025-24963?

    Exploiting CVE-2025-24963 can allow an attacker to access any file on the file system of the server.

  • What configurations are vulnerable in CVE-2025-24963?

    CVE-2025-24963 is particularly vulnerable if the 'browser.api.host' configuration is set to true.

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