CVE-2025-66449

ConvertX has Path Traversal that leads to Arbitrary File Write and Arbitrary Code Execution

Published Dec 16, 2025 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:c4illin:convertx:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared C4illin
C4illin convertx
Vendors & Products C4illin
C4illin convertx
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title ConvertX has Path Traversal that leads to Arbitrary File Write and Arbitrary Code Execution
Weaknesses CWE-22
CWE-434
CWE-73
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Dec 16, 2025, 3:08 PM
Reserved
Dec 1, 2025, 6:22 PM
Status
Analyzed
Published
Dec 16, 2025, 1:15 AM
Modified
Oct 7, 2026, 7:10 PM