CVE-2026-40474— wger has Broken Access Control in the Global Gym Configuration Update Endpoint
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I. Basic Information for CVE-2026-40474
Vulnerability Information
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Vulnerability Title
wger has Broken Access Control in the Global Gym Configuration Update Endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the GymConfigUpdateView declares permission_required = 'config.change_gymconfig' but inherits WgerFormMixin instead of WgerPermissionMixin, so the permission is never enforced at runtime. Since GymConfig is an ownerless singleton, any authenticated user can modify the global gym configuration, triggering save() side effects that bulk-update user profile gym assignments — a vertical privilege escalation to installation-wide configuration control. This issue is fixed in version 2.5.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
wger 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wger是wger Project开源的使用 Django 编写的自托管 FLOSS 健身/锻炼、营养和体重追踪器。 wger 2.5及之前版本存在安全漏洞，该漏洞源于GymConfigUpdateView声明了permission_required但继承WgerFormMixin而非WgerPermissionMixin，导致权限在运行时未强制执行，可能允许任何经过身份验证的用户修改全局健身房配置，从而触发批量更新用户配置文件健身房分配的副作用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| wger-project | wger | < 2.5 | - |
II. Public POCs for CVE-2026-40474
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|---|
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Same vendor: wger-project
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V. Comments for CVE-2026-40474
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