Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck
CVE-2026-111703yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints
Medium 6.3
In plain English
A medium-severity authorization bypass via user-controlled key in yshop-crm from guchengwuyue. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Official description
yshop-crm through 2.1.3 contains an insecure direct object reference vulnerability that allows authenticated sales users to access other users' customer records by supplying arbitrary ids. Attackers can enumerate ids against the get, update, delete and do-open endpoints to read contact details, overwrite or delete customers, or release them into the public pool.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| guchengwuyue | yshop-crm | 0 – through 2.1.3 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
References
- https://hackmd.io/@hieuPenguinnn/yshop-crm-customer-idor-and-missing-authz third-party-advisory
- https://github.com/guchengwuyue/yshop-crm/blob/a93846584877ed5f6ffcaeeb7182d1707a21a221/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/service/crmcustomer/CrmCustomerServiceImpl.java#L105-L203 technical-description
- https://github.com/guchengwuyue/yshop-crm/blob/a93846584877ed5f6ffcaeeb7182d1707a21a221/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/controller/admin/crmcustomer/CrmCustomerController.java#L46-L87 technical-description
- VulnCheck Advisory: yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints third-party-advisory