CVE-2026-86254

wger Incomplete Authorization Fix Cross-Tenant Account Deletion

MEDIUM
6.8
CVSS Score
Published: September 6, 2026 at 12:00 PM UTC
Updated: September 8, 2026 at 08:19 PM UTC
1 product affected across 1 vendorWger

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ master

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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