CVE-2026-46438: CWE-639: Authorization Bypass Through User-Controlled Key in wger-project wger
Description
wger versions prior to 2.6 contain an authorization bypass vulnerability allowing authenticated attackers to inject arbitrary workout log entries into other users' SlotEntry records. This occurs because the slot_entry foreign key is not verified for ownership, enabling cross-user data injection that corrupts victims' workout progression calculations. The issue is fixed in version 2.6.
CVSS v3.1
Score 6.5medium
Affected software
wger-project
wger
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
In wger versions before 2.6, an authenticated attacker can supply another user's slot_entry ID in a POST request to /api/v2/workoutlog/, bypassing ownership checks due to missing verification of the slot_entry foreign key in WorkoutLogViewSet.get_owner_objects(). This allows injection of arbitrary workout log entries into the victim's SlotEntry. Because SlotEntry.get_config_data() retrieves logs without filtering by user, the injected data affects the victim's auto-generated workout targets. The vulnerability is addressed in version 2.6.
Potential Impact
An authenticated attacker can corrupt another user's workout log data by injecting arbitrary entries, impacting the integrity of the victim's progressive-overload calculations and auto-generated weight and repetition targets. There is no confidentiality or availability impact reported.
Mitigation Recommendations
Upgrade wger to version 2.6 or later, where the vulnerability has been patched. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-13T22:18:22.830Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac654e62cdf04f656564111
Added to database: 10/07/2026, 14:19:18 UTC
Last enriched: 10/07/2026, 14:33:23 UTC
Last updated: 10/07/2026, 14:33:23 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.