Unauthenticated arbitrary file creation via ZIP provider
Published Apr 6, 2025 · Updated Apr 7, 2025
Unrestricted file upload in Kentico Xperience before 13.0.178 allows remote attackers to create files with disallowed extensions. The TryZipProviderSafe fallback treats an uploaded ZIP as a storage provider and returns an inner file whose extension bypasses ContentUploader's allowlist. No authentication or user interaction is required; the record does not establish code execution or data disclosure.
Summary
What happened
Unrestricted file upload in Kentico Xperience before 13.0.178 allows remote attackers to create files with disallowed extensions. The TryZipProviderSafe fallback treats an uploaded ZIP as a storage provider and returns an inner file whose extension bypasses ContentUploader's allowlist. No authentication or user interaction is required; the record does not establish code execution or data disclosure.
The record
- CVE
- CVE-2025-32370
- Published
- Apr 6, 2025
- Updated
- Apr 7, 2025
- Vendor
- Kentico
- Product
- Kentico Xperience
- Classifications
- CWE-434, CWE-912, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 6, 2025CVE publishedPublication date reported by the CVE source.
- Apr 7, 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=0 <13.0.178
What conditions does exploitation require?
What is affected?
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
- watchTowr ZIP-provider extension-bypass 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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