CVE-2026-34406HIGH 8.8EPSS p39.1%

CVE-2026-34406CVE-2026-34406

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.51% probability of exploitation · percentile 39.1% · 2026-06-18T12:00:27Z
Published2026-03-31
Last modified2026-04-10

Underlying weaknesses· 1

CWE-915

References

  1. https://github.com/APTRS/APTRS/commit/d1f1b3a5d1953082af8e075712ca29742e900d56
  2. https://github.com/APTRS/APTRS/releases/tag/2.0.1
  3. https://github.com/APTRS/APTRS/security/advisories/GHSA-gv25-wp4h-9c35

1

TypeTargetConfidenceTier
WeaknessImproperly Controlled Modification of Dynamically-Determined Object Attributescwe-9150%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.