Disclosure summary
ConvertXis a self-hosted online file converter. In versions prior to 0.16.0, the endpoint `/upload` allows an authenticated user to write arbitrary files on the system, overwriting binaries and allowing code execution. The upload function takes `file.name` directly from user supplied data without doing any sanitization on the name thus allowing for arbitrary file write. This can be used to overwrite system binaries with ones provided from an attacker allowing full code execution. Version 0.16.0 contains a patch for the issue.
Source-reported weakness categories
CWE-22, CWE-73, CWE-434
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-66449
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| c4illin | convertx | * {"versionEndExcluding":"0.16.0"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Product
- github.com — Patch
- github.com — Exploit, Vendor Advisory
- github.com — Exploit, Vendor Advisory
PUBLISHED 2025-12-15T20:15:51-05:00
MODIFIED 2026-10-07T15:10:00-04:00
INGESTED 2026-10-08T12:35:47-04:00