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Vulnerability IntelligenceCVE-2025-57751

CVE-2025-57751

HIGH7.7

Denial-of-Service attack in pyLoad CNL Blueprint using dukpy.evaljs

Published Aug 21, 2025

Modified 1 years ago

Details

pyLoad is the free and open-source Download Manager written in pure Python. The jk parameter is received in pyLoad CNL Blueprint. Due to the lack of jk parameter verification, the jk parameter input by the user is directly determined as dykpy.evaljs(), resulting in the server CPU being fully occupied and the web-ui becoming unresponsive. This vulnerability is fixed in 0.5.0b3.dev92.

References

https://github.com/pyload/pyload/security/advisories/GHSA-9gjj-6gj7-c4wj

https://www.cve.org/CVERecord?id=CVE-2025-57751

CVSS Analysis

CVSS v4.0

7.7

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

NoneVC:N

Vuln. Integrity

NoneVI:N

Vuln. Availability

HighVA:H

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

7.7/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

Weakness Type (CWE)

Resource Management

Resource Exhaustion

Ecosystems

Timeline

PublishedAug 21, 2025

ModifiedAug 21, 2025

CVE-2025-57751 | Mondoo Vulnerability Intelligence