CVE-2025-31486

MEDIUM NUCLEI

Vite server.fs.deny Bypass - Local File Inclusion

Title source: nuclei

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.

Exploits (3)

nomisec WORKING POC 6 stars
by Ly4j · poc
https://github.com/Ly4j/CVE-2025-31486
nomisec WORKING POC 6 stars
by iSee857 · poc
https://github.com/iSee857/CVE-2025-31486-PoC
nomisec WORKING POC
by hackmelocal · poc
https://github.com/hackmelocal/CVE-2025-31486-Simulation

Nuclei Templates (1)

Vite server.fs.deny Bypass - Local File Inclusion
MEDIUMVERIFIEDby wn147
Shodan: title:"Vite App"
FOFA: title="Vite App"

References (3)

Scores

CVSS v3 5.3
EPSS 0.0246
EPSS Percentile 85.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-200 CWE-284
Status published
Products (6)
npm/vite 6.2.0 - 6.2.5npm
vitejs/vite < 4.5.12
vitejs/vite >=5.0.0, < 5.4.17
vitejs/vite >=6.0.0, < 6.0.14
vitejs/vite >=6.1.0, < 6.1.4
vitejs/vite >=6.2.0, < 6.2.5
Published Apr 03, 2025
Tracked Since Feb 18, 2026