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CVE-2026-86254— wger Incomplete Authorization Fix Cross-Tenant Account Deletion

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 直至 master 分支的版本在 中存在授权绕过不完整的漏洞。该文件中的三个视图仍保留原始的健身房范围检查，使用的是原始整数比较，而非 辅助函数。这使得具有 权限且健身房关联为 的健身房工作人员，能够删除、停用或启用其他健身房关联同样为 的用户账号。 攻击者可利用 这一比较边界情况，通过该漏洞实现以下操作： 永久删除用户账号； 通过停用操作将用户锁定（使其无法登录）； 撤销之前的防御性停用操作。

CVSS 6.8 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
wger-project wger ≤ master affected
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I. Basic Information for CVE-2026-86254

Vulnerability Information
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Vulnerability Title
wger Incomplete Authorization Fix Cross-Tenant Account Deletion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wger-project wger 0 ~ master -

II. Public POCs for CVE-2026-86254

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III. Intelligence Information for CVE-2026-86254

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Vendor Advisories for CVE-2026-86254 (2)

Same Patch Batch · wger-project · 2026-09-06 · 4 CVEs total

CVE-2026-86255 6.5 MEDIUM wger before 2.5 Uncontrolled Resource Consumption via date_sequence
CVE-2026-86256 5.4 MEDIUM wger before 2.6 Open Redirect via trainer-login next parameter
CVE-2026-86257 5.4 MEDIUM wger before 2.6 CSV Formula Injection via member export

IV. Related Vulnerabilities

Same product: wger
Same vendor: wger-project
Same weakness: CWE-862

V. Comments for CVE-2026-86254

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