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CVE-2026-46438— wger: Cross-User Data Corruption via Missing Ownership Check on WorkoutLog.slot_entry

Quick assessment

Affected
wger-project wger
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

wger 是一款免费且开源的锻炼与健身管理应用。在 2.6 版本之前，经过身份验证的攻击者可以通过在 请求中提供受害者的 ID，向任何其他用户的 中注入任意锻炼记录条目。由于 执行的权限验证未包含 的外键字段，服务器在未报错的情况下接受并持久化了该跨用户引用。此外，因为 方法通过 检索关联日志时未进行用户过滤，攻击者注入的数据会被静默地合并到受害者的渐进超负荷（progressive overload）计算中，从而破坏其自动生成的重量和重复次数目标。2.6 版本已包含对此漏洞的修复补丁。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-46438

Vulnerability Information
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Vulnerability Title
wger: Cross-User Data Corruption via Missing Ownership Check on WorkoutLog.slot_entry
Source: CVE Program / CVE List V5
Vulnerability Description
wger is a free, open-source workout and fitness manager. Prior to version 2.6, an authenticated attacker can inject arbitrary workout log entries into any other user's `SlotEntry` by supplying the victim's `slot_entry` ID in a `POST /api/v2/workoutlog/` request. The `slot_entry` foreign key is not included in the ownership verification performed by `WorkoutLogViewSet.get_owner_objects()`, so the server accepts and persists the cross-user reference without error. Because `SlotEntry.get_config_data()` retrieves associated logs via `self.workoutlog_set.all()` with no user filter, the attacker's injected data is silently folded into the victim's progressive-overload calculations, corrupting their auto-generated weight and repetition targets. Version 2.6 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wger-project wger < 2.6 -

II. Public POCs for CVE-2026-46438

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III. Intelligence Information for CVE-2026-46438

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Other References for CVE-2026-46438 (2)

Same Patch Batch · wger-project · 2026-10-07 · 5 CVEs total

CVE-2026-43976 7.1 HIGH wger: cross-tenant admin notes/contracts leak via gym=None bypass (5 views)
CVE-2026-46434 7.1 HIGH wger: Trainer Privilege Escalation - Improper Privilege Management
CVE-2026-45161 5.4 MEDIUM wger: trainer_login accepts GET - CSRF bypass enables forced session rebinding
CVE-2026-46437 4.8 MEDIUM wger: API credentials remain valid after logout/password change

IV. Related Vulnerabilities

Same product: wger
Same vendor: wger-project
Same weakness: CWE-639

V. Comments for CVE-2026-46438

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