Missing Authorization Affecting wger package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.23% (13th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Missing Authorization vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PYTHON-WGER-21693639
  • published24 Oct 2026
  • disclosed7 Oct 2026
  • creditUnknown

Introduced: 7 Oct 2026

NewCVE-2026-46438  (opens in a new tab)
CWE-639  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Missing Authorization via WorkoutLogViewSet.get_owner_objects() in wger/manager/api/views.py, which omits the slot_entry foreign key from the ownership verification list. An authenticated attacker can supply their own routine ID (which passes the ownership check) alongside a victim's slot_entry ID in a POST /api/v2/workoutlog/ request, and the server accepts and persists the cross-user reference without error. Because SlotEntry.get_config_data() retrieves associated logs via self.workoutlog_set.all() with no user filter, the injected entries are silently folded into the victim's progressive-overload calculations, corrupting their auto-generated weight and repetition targets.

CVSS Base Scores

version 4.0
version 3.1