CVE-2026-86254
wger Incomplete Authorization Fix Cross-Tenant Account Deletion
- State
- Published
- Severity
- 6.1 Medium
- Published
- Sep 6, 2026
- Updated
- Sep 8, 2026
- Reserved
- Sep 6, 2026
Description
wger versions through master contain an incomplete authorization bypass in wger/core/views/user.py where three views retain the original gym-scope check using raw integer comparison instead of the is_same_gym() helper, allowing gym staff with gym=None to delete, deactivate, or activate any other user with gym=None. Attackers with gym.manage_gym permission and gym=None affiliation can permanently delete user accounts, lock users out via deactivation, or undo defensive deactivations by exploiting the None != None comparison edge case.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.1 Medium | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
wgerwger-project |
|
References
- GitHub Security Advisory (GHSA-mw8f-w6p8-xrf4)vendor-advisory
- VulnCheck Advisory: wger Incomplete Authorization Fix Cross-Tenant Account Deletionthird-party-advisory
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