CVE-2026-111703: yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-16
Weakness: CWE-639

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

guchengwuyue yshop-crm: through 2.1.3

References

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
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
https://hackmd.io/@hieuPenguinnn/yshop-crm-customer-idor-and-missing-authz
https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-idor-via-crm-customer-by-id-endpoints
https://hackmd.io/@hieuPenguinnn/yshop-crm-customer-idor-and-missing-authz

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