CVE-2025-54140 Information

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.

Reference

https://github.com/pyload/pyload/blob/df094db67ec6e25294a9ac0ddb4375fd7fb9ba00/src/pyload/webui/app/blueprints/json_blueprint.py#L109 https://github.com/pyload/pyload/commit/fc4b136e9c4e7dcbb8e467ae802cb2c3f70a71b0 https://github.com/pyload/pyload/security/advisories/GHSA-xqpg-92fq-grfg

CNNVD-202507-2943 (Published: 2025-07-22)

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