CVE-2023-49293: vitejs vite Cross-site Scripting

Vulnerability summary

CVE-2023-49293 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in vitejs vite. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 04-12-2023
   PublishedVulnerability first disclosed.
2. 29-05-2025
   Last modifiedVulnerability information updated.

Description

Vite is a website frontend framework. When Vite's HTML transformation is invoked manually via `server.transformIndexHtml`, the original request URL is passed in unmodified, and the `html` being transformed contains inline module scripts (`<script type="module">...</script>`), it is possible to inject arbitrary HTML into the transformed output by supplying a malicious URL query string to `server.transformIndexHtml`. Only apps using `appType: 'custom'` and using the default Vite HTML middleware are affected. The HTML entry must also contain an inline script. The attack requires a user to click on a malicious URL while running the dev server. Restricted files aren't exposed to the attacker. This issue has been addressed in vite@5.0.5, vite@4.5.1, and vite@4.4.12. There are no known workarounds for this vulnerability.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.