Denial-of-Service attack in pyLoad CNL Blueprint using dukpy.evaljs
Published Aug 21, 2025
7.7
HIGHCVSS 4.0
EPSS 0.33%
Description
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.
Affected products
-
- Version < 0.5.0b3.dev92StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 21, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2025-2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.33% (0.00325) | 23.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.30% (0.00300) | 21.44th | v5 (v2026.06.15) |
| Aug 22, 2025 | 0.04% (0.00042) | 11.70th | v4 (v2025.03.14) |
References (3)
- https://github.com/advisories/GHSA-9gjj-6gj7-c4wj Advisory
- https://github.com/pyload/pyload/security/advisories/GHSA-9gjj-6gj7-c4wj x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2025-57751
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-9gjj-6gj7-c4wj | Advisory | |
| https://github.com/pyload/pyload/security/advisories/GHSA-9gjj-6gj7-c4wj | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2025-57751 |
Change history (0)
No recorded changes yet.