CVE-2025-62522
vite allows server.fs.deny bypass via backslash on Windows
Record summary
CVE-2025-62522 has a selected CVSS score of 6.0 (medium); EIP currently links 1 Nuclei template.
Description
Vite is a frontend tooling framework for JavaScript. In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to before 5.4.21, 6.0.0 to before 6.4.1, 7.0.0 to before 7.0.8, and 7.1.0 to before 7.1.11, files denied by server.fs.deny were sent if the URL ended with \ when the dev server is running on Windows. Only apps explicitly exposing the Vite dev server to the network and running the dev server on Windows were affected. This issue has been patched in versions 5.4.21, 6.4.1, 7.0.8, and 7.1.11.
Exploitation context
Available material
- Nuclei templates
- 1
CISA SSVC decision
CISA Coordinator · SSVC 2.0.3 · Evaluated Oct 20, 2025 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | >= 7.1.0, < 7.1.11 | affected | |
| >= 7.0.0, < 7.0.8 | affected | ||
| >= 6.0.0, < 6.4.1 | affected | ||
| >= 5.2.6, < 5.4.21 | affected | ||
| >= 4.5.3, < 5.0.0 | affected | ||
| >= 3.2.9, < 4.0.0 | affected | ||
| >= 2.9.18, < 3.0.0 | affected | ||
| GitHub Advisory | 7.1.0 to < 7.1.11 · Fixed in 7.1.11 | affected | |
| 7.0.0 to < 7.0.8 · Fixed in 7.0.8 | affected | ||
| 6.0.0 to < 6.4.1 · Fixed in 6.4.1 | affected | ||
| 2.9.18 to < 5.4.21 · Fixed in 5.4.21 | affected | ||
| 3.2.9 to < 5.4.21 · Fixed in 5.4.21 | affected | ||
| 4.5.3 to < 5.4.21 · Fixed in 5.4.21 | affected | ||
| 5.2.6 to < 5.4.21 · Fixed in 5.4.21 | affected |
Nuclei templates
1ProjectDiscoveryMEDIUMVite - Information Disclosure
Vite is a frontend tooling framework for JavaScript.In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to before 5.4.21, 6.0.0 to before 6.4.1, 7.0.0 to before 7.0.8, and 7.1.0 to before 7.1.11, files denied by server.fs.deny were sent if the URL ended with \ when the dev server is running on Windows. Only apps explicitly exposing the Vite dev server to the network and running the dev server on Windows were affected. This issue has been patched in versions 5.4.21, 6.4.1, 7.0.8, and 7.1.11.
Impact
Remote attackers can access files denied by server.fs.deny, leading to sensitive information disclosure.
Remediation
Update to versions 5.4.21, 6.4.1, 7.0.8, or 7.1.11 or later.
Source: ProjectDiscovery