CVE-2026-34406

APTRS (Automated Penetration Testing Reporting System) is a Python and Django-based automated reporting tool designed for penetration testers and security organizations. Prior to version 2.0.1, the edit_user endpoint (POST /api/auth/edituser/<pk>) allows Any user who can reach that endpoint and submit crafted permission to escalate their own account (or any other account) to superuser by including "is_superuser": true in the request body. The root cause is that CustomUserSerializer explicitly includes is_superuser in its fields list but omits it from read_only_fields, making it a writable field. The edit_user view performs no additional validation to prevent non-superusers from modifying this field. Once is_superuser is set to true, gaining unrestricted access to all application functionality without requiring re-authentication. This issue has been patched in version 2.0.1.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/APTRS/APTRS/commit/d1f1b3a5d1953082af8e075712ca29742e900d56	Patch
https://github.com/APTRS/APTRS/releases/tag/2.0.1	Release Notes
https://github.com/APTRS/APTRS/security/advisories/GHSA-gv25-wp4h-9c35	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:aptrs:aptrs:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2026-03-31 22:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-34406

Mitre link : CVE-2026-34406

CVE.ORG link : CVE-2026-34406

JSON object : View

Products Affected

aptrs

aptrs

CWE

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

NVD-CWE-noinfo

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Prior to version 2.0.1, the edit_user endpoint (POST /api/auth/edituser/<pk>) allows Any user who can reach that endpoint and submit crafted permission to escalate their own account (or any other account) to superuser by including \"is_superuser\": true in the request body. The root cause is that CustomUserSerializer explicitly includes is_superuser in its fields list but omits it from read_only_fields, making it a writable field. The edit_user view performs no additional validation to prevent non-superusers from modifying this field. Once is_superuser is set to true, gaining unrestricted access to all application functionality without requiring re-authentication. This issue has been patched in version 2.0.1."}, {"lang": "es", "value": "APTRS (Automated Penetration Testing Reporting System) es una herramienta de informes automatizada basada en Python y Django, dise\u00f1ada para probadores de penetraci\u00f3n y organizaciones de seguridad. Antes de la versi\u00f3n 2.0.1, el endpoint edit_user (POST /API/auth/edituser/<pk>) permite a cualquier usuario que pueda alcanzar ese endpoint y enviar un permiso manipulado escalar su propia cuenta (o cualquier otra cuenta) a superusuario al incluir 'is_superuser': true en el cuerpo de la solicitud. La causa ra\u00edz es que CustomUserSerializer incluye expl\u00edcitamente is_superuser en su lista de campos pero lo omite de read_only_fields, convirti\u00e9ndolo en un campo editable. La vista edit_user no realiza ninguna validaci\u00f3n adicional para evitar que los no-superusuarios modifiquen este campo. Una vez que is_superuser se establece en true, se obtiene acceso sin restricciones a toda la funcionalidad de la aplicaci\u00f3n sin requerir re-autenticaci\u00f3n. Este problema ha sido parcheado en la versi\u00f3n 2.0.1."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:aptrs:aptrs:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "FE83DFB0-C9D9-4F10-A3DA-901FFBCDCC6D", "versionEndExcluding": "2.0.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}