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Advisory details: vulnrichment / CVE-2025-54802
Advisory ID vulnrichment/CVE-2025-54802
Aliases
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
System Score Found at
cvssv3.1 9.8
ssvc Track*
Reference id Reference type URL
https://github.com/pyload/pyload/commit/70a44fe02c03bce92337b5d370d2a45caa4de3d4
https://github.com/pyload/pyload/pull/4596
GHSA-48rp-jc79-2264 https://github.com/pyload/pyload/security/advisories/GHSA-48rp-jc79-2264
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at None
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2025-08-05T14:29:40Z/ Found at None

Vector: SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2025-08-05T14:29:40Z/

Decision: Track*

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/54xxx/CVE-2025-54802.json

Source Advisory: vulnrichment/CVE-2025-54802

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]