/Vulnerability Library

Vite dev server - Cross-Site Scripting

CVE-2023-49293
Verified

Description

Vite's dev server, when used with `appType: 'custom'` and manually invoking `server.transformIndexHtml` using the unmodified request URL, is vulnerable to XSS via a crafted URL payload. If the HTML being served includes an inline module script (`<script type="module">...</script>`), an attacker can inject a script via the URL, potentially leading to XSS in the browser. The vulnerability only affects certain custom SSR/dev configurations, not plain `vite dev`.

Severity

Medium

CVSS Score

6.1

Exploit Probability

1%

Published Date

March 26, 2026

Template Author

ritikchaddha

CVE-2023-49293.yaml
6.1Score

CVSS Metrics

CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVE ID:
cve-2023-49293
CWE ID:
cwe-80

References

https://github.com/vitejs/vite/security/advisories/GHSA-92r3-m2mg-pj97https://nvd.nist.gov/vuln/detail/CVE-2023-49293

Remediation Steps

Update to vite@5.0.5, vite@4.5.1, or vite@4.4.12.