pyLoad is a free and open-source Download Manager written in pure Python. In version 0.5.0b3.dev89, an authenticated path traversal vulnerability exists in the /json/upload endpoint of pyLoad. By manipulating the filename of an uploaded file, an attacker can traverse out of the intended upload directory, allowing them to write arbitrary files to any location on the system accessible to the pyLoad process. This may lead to: Remote Code Execution (RCE), local privilege escalation, system-wide compromise, persistence, and backdoors. This is fixed in version 0.5.0b3.dev90.
History

Wed, 23 Jul 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 23 Jul 2025 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Pyload
Pyload pyload
Vendors & Products Pyload
Pyload pyload

Tue, 22 Jul 2025 21:45:00 +0000

Type Values Removed Values Added
Description pyLoad is a free and open-source Download Manager written in pure Python. In version 0.5.0b3.dev89, an authenticated path traversal vulnerability exists in the /json/upload endpoint of pyLoad. By manipulating the filename of an uploaded file, an attacker can traverse out of the intended upload directory, allowing them to write arbitrary files to any location on the system accessible to the pyLoad process. This may lead to: Remote Code Execution (RCE), local privilege escalation, system-wide compromise, persistence, and backdoors. This is fixed in version 0.5.0b3.dev90.
Title pyLoad has Path Traversal Vulnerability in json/upload Endpoint that allows Arbitrary File Write
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-07-22T21:34:30.750Z

Updated: 2025-07-23T18:28:44.036Z

Reserved: 2025-07-16T23:53:40.511Z

Link: CVE-2025-54140

cve-icon Vulnrichment

Updated: 2025-07-23T18:28:37.837Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-22T22:15:38.390

Modified: 2025-07-25T15:29:44.523

Link: CVE-2025-54140

cve-icon Redhat

No data.