CVE-2026-33509

Description

pyLoad is a free and open-source download manager written in Python. From version 0.4.0 to before version 0.5.0b3.dev97, the set_config_value() API endpoint allows users with the non-admin SETTINGS permission to modify any configuration option without restriction. The reconnect.script config option controls a file path that is passed directly to subprocess.run() in the thread managers reconnect logic. A SETTINGS user can set this to any executable file on the system, achieving Remote Code Execution. The only validation in set_config_value() is a hardcoded check for general.storage_folder all other security-critical settings including reconnect.script are writable without any allowlist or path restriction. This issue has been patched in version 0.5.0b3.dev97.

Risk Information

Base Score

8.8

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.063

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-33314,CVE-2026-33509 are affected in Python-pyload-ng 0.5.0b3.dev96	Windows
Vulnerabilities CVE-2026-33314,CVE-2026-33509,CVE-2026-33992 are affected in Python-pyload-ng 0.5.0b3.dev96	Windows
Multiple vulnerabilities are affected in Python-pyload-ng 0.5.0b3.dev96	Windows
Vulnerabilities CVE-2026-33314,CVE-2026-33509 are affected in Python-pyload-ng for linux 0.5.0b3.dev96	Linux
Vulnerabilities CVE-2026-33314,CVE-2026-33509,CVE-2026-33992 are affected in Python-pyload-ng for linux 0.5.0b3.dev96	Linux
Multiple vulnerabilities are affected in Python-pyload-ng for linux 0.5.0b3.dev96	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234