Arbitrary file disclosure via trailing query separators
Published Mar 24, 2025 · Updated Mar 24, 2025
Access-control bypass in Vite allows remote attackers to read arbitrary files through an exposed development server. The transform middleware tests raw and import query patterns without first removing trailing question-mark separators, allowing crafted @fs URLs to evade ensureServingAccess. Reachability requires explicit network exposure through --host or server.host; the demonstrated consequence is file disclosure only.
Summary
What happened
Access-control bypass in Vite allows remote attackers to read arbitrary files through an exposed development server. The transform middleware tests raw and import query patterns without first removing trailing question-mark separators, allowing crafted @fs URLs to evade ensureServingAccess. Reachability requires explicit network exposure through --host or server.host; the demonstrated consequence is file disclosure only.
The record
- CVE
- CVE-2025-30208
- Published
- Mar 24, 2025
- Updated
- Mar 24, 2025
- Vendor
- Vite
- Product
- Vite
- Classifications
- CWE-200, CWE-284, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 24, 2025CVE publishedPublication date reported by the CVE source.
- Mar 24, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 4.5.10
- Affected versionversion=>= 5.0.0, < 5.4.15
- Affected versionversion=>= 6.0.0, < 6.0.12
- Affected versionversion=>= 6.1.0, < 6.1.2
- Affected versionversion=>= 6.2.0, < 6.2.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream curl proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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