CVE-2026-27838— wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data
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I. Basic Information for CVE-2026-27838
Vulnerability Information
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Vulnerability Title
wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data
Source: NVD (National Vulnerability Database)
Vulnerability Description
wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling `self.get_object()`. In versions up to and including 2.4, ache keys are scoped only by `pk` — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership check. Commit e964328784e2ee2830a1991d69fadbce86ac9fbf contains a patch for the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
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 2.4及之前版本存在安全漏洞，该漏洞源于缓存键范围不当，可能导致未经授权的数据访问。
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 | <= 2.4 | - |
II. Public POCs for CVE-2026-27838
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|---|
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Same Patch Batch · wger-project · 2026-02-26 · 3 CVEs total
| CVE-2026-27839 | 4.3 MEDIUM | wger: IDOR in nutritional_values endpoints exposes private dietary data via direct ORM loo |
| CVE-2026-27835 | 4.3 MEDIUM | wger: IDOR in RepetitionsConfig and MaxRepetitionsConfig API leak other users' workout dat |
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Same vendor: wger-project
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