Improper Access Control in Vite (CVE‑2025‑31125) Exposes Files via ?inline&import / ?raw?import
What It Is – Vite js (the Vite dev server) contains an improper access‑control flaw that lets an attacker retrieve the contents of files that the application has not marked for public exposure, simply by appending the query parameters ?inline&import or ?raw?import to a request.
Exploitability – The issue is exploitable only when the dev server is deliberately bound to a network‑reachable address (e.g., using --host or server.host). No public exploit code is known, but the vulnerability is trivial to weaponise once the server is exposed.
Affected Products – Vite js (all versions that include the vulnerable dev server logic; see vendor advisory for exact version range).
Why It Matters for Trust & Control Assurance
- Access‑control hygiene – The flaw highlights the need for strict policies that limit development‑tool exposure to trusted networks only.
- Continuous monitoring – Detecting an open Vite dev server is a concrete control‑evidence point that can be logged and reported in real‑time dashboards.
- Audit defensibility – Demonstrating that you enforce “no external access to development services” satisfies a core control objective across SOC 2, ISO 27001, NIST CSF and many others, providing a single, reusable evidence artifact for multiple frameworks.
Recommended Actions
- Restrict the dev server – Run Vite with the default localhost binding; avoid
--hostorserver.hostunless absolutely required. - Patch promptly – Apply the vendor‑released fix (or upgrade to the first non‑vulnerable release).
- Add configuration checks – Integrate a CI/CD gate that flags any
--host/server.hostusage in production pipelines. - Log and monitor – Enable network‑access logs for the dev server and set alerts for any external IP connections.
- Document remediation – Capture screenshots or log excerpts showing the server is bound to localhost; store them as audit evidence.
Source: CISA KEV – CVE‑2025‑31125