Description
Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- vitejs / vite< 4.5.12 – < 4.5.12
- vitejs / vite>=5.0.0, < 5.4.17 – >=5.0.0, < 5.4.17
- vitejs / vite>=6.0.0, < 6.0.14 – >=6.0.0, < 6.0.14
- vitejs / vite>=6.1.0, < 6.1.4 – >=6.1.0, < 6.1.4
- vitejs / vite>=6.2.0, < 6.2.5 – >=6.2.0, < 6.2.5
Exploits & PoCs
- nucleiVite server.fs.deny Bypass - Local File Inclusionby wn147