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CVE-2025-54140

CVE-2025-54140 · pyLoad has Path Traversal Vulnerability in json/upload Endpoint that allows Arbitrary File Write

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 0.8% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • pyload

    Versions
    • >= 0.5.0b3.dev89, < 0.5.0b3.dev90: Affected

    No fix published

  • pyload-ng PyPI

    Versions
    • 0.5.0b3.dev89
    Affected ranges
    • ECOSYSTEM: ≥ 0.5.0b3.dev89, < 0.5.0b3.dev90

    Update to 0.5.0b3.dev90

Original sources

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