CVE-2025-57751CWE-400

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

High · published August 21, 2025

CVSS v4.0
7.7
EPSS
0%
Percentile
24.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.7 · HIGH
Vector
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
EPSS
0.00325 · 24.3th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2025-08-21T18:27Z
EPSS history
Timeline
  • 21 AUG 18:27Z
    Denial-of-Service attack in pyLoad CNL Blueprint using dukpy.evaljs
    cvelistv5