---
id: CVE-2026-109171
title: >-
  yshop-crm through 2.1.3 contains a missing authorization vulnerability that
  allows any authenticated back-office user to approve or reject contracts by
  calling POST /admin-api/crm/contract/check
summary: >-
  yshop-crm through 2.1.3 contains a missing authorization vulnerability that
  allows any authenticated back-office user to approve or reject contracts by
  calling POST /admin-api/crm/contract/check. Because CrmContractController
  lacks @PreA…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T13:17:29.643'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109171'
references:
  - url: >-
      https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/yshop-crm/poc_crm_contract_check.py
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/sql/yshop-crm-open-source.sql#L2637
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/controller/admin/crmcontract/CrmContractController.java#L100-L106
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/service/crmcontract/CrmContractServiceImpl.java#L315-L432
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-missing-authorization-via-admin-api-crm-contract-check
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.111Z'
---

## Overview

yshop-crm through 2.1.3 contains a missing authorization vulnerability that allows any authenticated back-office user to approve or reject contracts by calling POST /admin-api/crm/contract/check. Because CrmContractController lacks @PreAuthorize and approver checks are commented out, attackers can approve contracts to alter customer deal and purchase data or reject them to return products to stock.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.