Remote code execution via unchecked ZIP extraction
Published Mar 11, 2026 · Updated Mar 11, 2026
Arbitrary file upload in File Thingie 2.5.7 allows remote attackers to execute commands by uploading and extracting a crafted ZIP archive. The ft2.php upload action accepts a ZIP because only its outer extension is checked, and the unzip action extracts embedded PHP files without reapplying the file-type blacklist. Reachability requires uploads and file actions, an executable web directory, and either an authenticated session or disabled login protection.
Summary
What happened
Arbitrary file upload in File Thingie 2.5.7 allows remote attackers to execute commands by uploading and extracting a crafted ZIP archive. The ft2.php upload action accepts a ZIP because only its outer extension is checked, and the unzip action extracts embedded PHP files without reapplying the file-type blacklist. Reachability requires uploads and file actions, an executable web directory, and either an authenticated session or disabled login protection.
The record
- CVE
- CVE-2019-25471
- Published
- Mar 11, 2026
- Updated
- Mar 11, 2026
- Vendor
- Andreas Haugstrup Pedersen
- Product
- File Thingie
- Classifications
- CWE-22, T1190, T1505.003
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Mar 11, 2026CVE publishedPublication date reported by the CVE source.
- Mar 11, 2026Record 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=2.5.7
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
- FileThingie 2.5.7 Arbitrary File Uploadfunctional · demonstrated
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Technologies
Your stack
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Your stack
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