CVE-2025-54802
pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE)
Description
pyLoad is the free and open-source Download Manager written in pure Python. In versions 0.5.0b3.dev89 and below, there is an opportunity for path traversal in pyLoad-ng CNL Blueprint via package parameter, allowing Arbitrary File Write which leads to Remote Code Execution (RCE). The addcrypted endpoint in pyload-ng suffers from an unsafe path construction vulnerability, allowing unauthenticated attackers to write arbitrary files outside the designated storage directory. This can be abused to overwrite critical system files, including cron jobs and systemd services, leading to privilege escalation and remote code execution as root. This issue is fixed in version 0.5.0b3.dev90.
INFO
Published Date :
Aug. 5, 2025, 1:15 a.m.
Last Modified :
Oct. 9, 2025, 5:32 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update pyLoad to version 0.5.0b3.dev90.
- Verify the installation of the updated version.
- Review application logs for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-54802.
| URL | Resource |
|---|---|
| https://github.com/pyload/pyload/commit/70a44fe02c03bce92337b5d370d2a45caa4de3d4 | Patch |
| https://github.com/pyload/pyload/pull/4596 | Exploit Patch |
| https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264 | Exploit Vendor Advisory |
| https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-54802 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-54802
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-54802 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-54802 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 09, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:pyload-ng_project:pyload-ng:0.5.0b3.dev89:*:*:*:*:python:*:* Added Reference Type GitHub, Inc.: https://github.com/pyload/pyload/commit/70a44fe02c03bce92337b5d370d2a45caa4de3d4 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/pyload/pyload/pull/4596 Types: Exploit, Patch Added Reference Type CISA-ADP: https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264 Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 05, 2025
Action Type Old Value New Value Added Reference https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264 -
New CVE Received by [email protected]
Aug. 05, 2025
Action Type Old Value New Value Added Description pyLoad is the free and open-source Download Manager written in pure Python. In versions 0.5.0b3.dev89 and below, there is an opportunity for path traversal in pyLoad-ng CNL Blueprint via package parameter, allowing Arbitrary File Write which leads to Remote Code Execution (RCE). The addcrypted endpoint in pyload-ng suffers from an unsafe path construction vulnerability, allowing unauthenticated attackers to write arbitrary files outside the designated storage directory. This can be abused to overwrite critical system files, including cron jobs and systemd services, leading to privilege escalation and remote code execution as root. This issue is fixed in version 0.5.0b3.dev90. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-22 Added Reference https://github.com/pyload/pyload/commit/70a44fe02c03bce92337b5d370d2a45caa4de3d4 Added Reference https://github.com/pyload/pyload/pull/4596 Added Reference https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264