wger: Trainer Privilege Escalation - Improper Privilege Management

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2026-46434: 0.22% estimated exploitation activity in the next 30 days; percentile 12.72 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary A user with only the `gym_trainer` permission can deactivate any account in the same gym, including `gym_manager` and `general_gym_manager` accounts. The `UserDeactivateView` grants access to anyone holding any one of `gym.manage_gym`, `gym.manage_gyms`, or `gym.gym_trainer` (OR logic via `WgerMultiplePermissionRequiredMixin`), and performs no privilege-hierarchy check to prevent a lower-privileged role from disabling a higher-privileged one.

Details `UserDeactivateView` (file: `wger/core/views/user.py`, line 378) is configured with: ```python permission_required = ('gym.manage_gym', 'gym.manage_gyms', 'gym.gym_trainer') ``` `WgerMultiplePermissionRequiredMixin` (file: `wger/utils/generic_views.py`, line 48) treats this tuple as an OR check -- any single permission is sufficient: ```python class WgerMultiplePermissionRequiredMixin(PermissionRequiredMixin): def has_permission(self): for permission in self.get_permission_required(): if…

Published by the source

7 Oct 2026, 13:59 UTC

Last modified by the source

26 Oct 2026, 16:00 UTC

Source last checked

27 Oct 2026, 06:15 UTC

1. Revision 5 · amended · 27 Oct 2026

   Amended from osv record GHSA-x249-cx55-2h87

2. Revision 4 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-x249-cx55-2h87

3. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-x249-cx55-2h87

4. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GHSA-x249-cx55-2h87

5. Revision 1 · created · 23 Oct 2026

   Published from ghsa record GHSA-x249-cx55-2h87

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# Patch Next advisory brief: CVE-2026-46434

Advisory: wger: Trainer Privilege Escalation - Improper Privilege Management
IDs: CVE-2026-46434, GHSA-x249-cx55-2h87
Record: https://patchnext.com/advisories/cve-2026-46434 (revision 5, source checked 27 Oct 2026, 06:15 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI wger: affected <= 2.1

## Suggested inspection (read-only)
- `python -m pip show wger`: prints the installed version. Run with the environment that serves production active.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on wger.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-x249-cx55-2h87 (GitHub-reviewed advisory GHSA-x249-cx55-2h87 lists affected ranges: PyPI wger >=0 <=2.1)
- Verified: https://osv.dev/vulnerability/GHSA-x249-cx55-2h87 (OSV record GHSA-x249-cx55-2h87 lists affected ranges: PyPI wger >=0 <=2.1)

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