Authenticated file deletion via path traversal
Published Jan 27, 2026 · Updated Jan 27, 2026
Path traversal in C4illin ConvertX before 0.17.0 allows remote authenticated users to delete arbitrary server-accessible files. The POST /delete handler concatenates the JSON filename value with the user's uploads path and passes the result to fs.unlink without canonicalization, allowlisting, or a directory-boundary check. A valid session and jobId cookie reach the handler, and deletion is limited to files writable by the server process, so application data or configuration loss can interrupt service.
Summary
What happened
Path traversal in C4illin ConvertX before 0.17.0 allows remote authenticated users to delete arbitrary server-accessible files. The POST /delete handler concatenates the JSON filename value with the user's uploads path and passes the result to fs.unlink without canonicalization, allowlisting, or a directory-boundary check. A valid session and jobId cookie reach the handler, and deletion is limited to files writable by the server process, so application data or configuration loss can interrupt service.
The record
- CVE
- CVE-2026-24741
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Vendor
- C4illin
- Product
- ConvertX
- Classifications
- CWE-22, T1485
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 27, 2026CVE publishedPublication date reported by the CVE source.
- Jan 27, 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=< 0.17.0
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
- GHSA-w372-w6cr-45jp authenticated path-traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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