CVE-2026-43976

wger is a free, open-source workout and fitness manager. Prior to version 2.6, five gym management views in wger apply a flawed gym-scope guard (`gym_a != gym_b`) that silently passes when both operands are `None`. A trainer with `gym.gym_trainer` and `gym.add_adminusernote` permissions and no gym assignment (`gym=None`) can read private admin notes, uploaded documents, gym contracts, user configuration, and user permission data for **any other unaffiliated user** on the instance. The subsequent querysets filter only on the attacker-supplied `member_id` with no secondary gym-scoped validation, so all records are disclosed. Version 2.6 fixes the issue.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wger-project/wger/releases/tag/2.6
https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp
https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp

Configurations

No configuration.

History

07 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp -~~	() https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp -

07 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 14:17

Updated : 2026-10-07 18:17

NVD link : CVE-2026-43976

Mitre link : CVE-2026-43976

CVE.ORG link : CVE-2026-43976

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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