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CVE-2025-66449— ConvertX has Path Traversal that leads to Arbitrary File Write and Arbitrary Code Execution

Quick assessment

Affected
C4illin ConvertX
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ConvertX是ConvertX公司的一个文件格式转换工具。 ConvertX 0.16.0之前版本存在安全漏洞，该漏洞源于上传功能未清理文件名，可能导致任意文件写入和执行任意代码。

CVSS 8.8 · High EPSS 0.78% · P54
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I. Basic Information for CVE-2025-66449

Vulnerability Information
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Vulnerability Title
ConvertX has Path Traversal that leads to Arbitrary File Write and Arbitrary Code Execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
ConvertX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ConvertX是ConvertX公司的一个文件格式转换工具。 ConvertX 0.16.0之前版本存在安全漏洞，该漏洞源于上传功能未清理文件名，可能导致任意文件写入和执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
C4illin ConvertX < 0.16.0 -

II. Public POCs for CVE-2025-66449

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7254 chars
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III. Intelligence Information for CVE-2025-66449

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Patches & Fixes for CVE-2025-66449 (1)

Vendor Advisories for CVE-2025-66449 (1)

Other References for CVE-2025-66449 (1)

IV. Related Vulnerabilities

Same product: ConvertX
Same vendor: C4illin
Same weakness: CWE-22

V. Comments for CVE-2025-66449

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