{"cve":"CVE-2025-54140","nvd":{"published":"2025-07-22T22:15:38.390","modified":"2026-06-17T09:39:31.443","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-22"],"references":["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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:05:46.678065081+00:00"},"epss":{"cve":"CVE-2025-54140","score":0.00753,"percentile":0.55064,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-xqpg-92fq-grfg","url":"https://osv.dev/vulnerability/GHSA-xqpg-92fq-grfg","summary":"`pyLoad` has Path Traversal Vulnerability in `json/upload` Endpoint that allows Arbitrary File Write","modified":"2026-07-07T17:57:07.317565761Z","packages":[{"ecosystem":"PyPI","name":"pyload-ng","purl":"pkg:pypi/pyload-ng","ranges":[">=0.5.0b3.dev89 <0.5.0b3.dev90"],"fixed":["0.5.0b3.dev90"]}]},{"id":"PYSEC-2026-1823","url":"https://osv.dev/vulnerability/PYSEC-2026-1823","summary":"`pyLoad` has Path Traversal Vulnerability in `json/upload` Endpoint that allows Arbitrary File Write","modified":"2026-07-07T17:47:50.544549460Z","packages":[{"ecosystem":"PyPI","name":"pyload-ng","purl":"pkg:pypi/pyload-ng","ranges":[">=0.5.0b3.dev89 <0.5.0b3.dev90"],"fixed":["0.5.0b3.dev90"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}