CVE-2025-66449

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

State: Published
Severity: 8.8 High
Published: Dec 16, 2025
Updated: Dec 16, 2025
Reserved: Dec 1, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 External Control of File Name or Path
CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
ConvertXC4illin	< 0.16.0Affected

References

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