pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE)

CVE Details

Basic Information

Title pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE)
Type cve
Published 2025-08-05T00:06:48.834Z
Modified 2025-08-05T00:06:48.834Z

Product Information

Vendor pyload
Product pyload
Version >= 0.5.0b3.dev89, < 0.5.0b3.dev90

CVSS Information

Base Score 9.8 (CRITICAL)
Attack Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

  • pyload pyload >= 0.5.0b3.dev89, < 0.5.0b3.dev90

Additional Information

CWE List CWE-22
Source GitHub_M

Description

pyLoad is the free and open-source Download Manager written in pure Python. In versions 0.5.0b3.dev89 and below, there is an opportunity for path traversal in pyLoad-ng CNL Blueprint via package parameter, allowing Arbitrary File Write which leads to Remote Code Execution (RCE). The addcrypted endpoint in pyload-ng suffers from an unsafe path construction vulnerability, allowing unauthenticated attackers to write arbitrary files outside the designated storage directory. This can be abused to overwrite critical system files, including cron jobs and systemd services, leading to privilege escalation and remote code execution as root. This issue is fixed in version 0.5.0b3.dev90.

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