Insecure direct object reference in yshop-crm exposes customer records
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
yshop-crm through 2.1.3 by guchengwuyue contains an insecure direct object reference (CWE-639) that lets authenticated sales users access other users' customer records by supplying arbitrary ids. An attacker can enumerate ids to read contact details, overwrite or delete customers, or release them into the public pool.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| guchengwuyue | yshop-crm | up to 2.1.3 | — | No fix listed | CNA |
- yshop-crm Vendorguchengwuyue Affected up to 2.1.3 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for yshop-crm.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111703
- 2026-10-16 Alias added: GHSA-wgfx-4ghc-w92f
- 2026-10-18 CISA SSVC decision points changed
- 2026-10-18 Priority changed: LOW → MEDIUM
References
Other 2
- 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://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
More guchengwuyue vulnerabilities
- TI-2024-34061 yshopmall V1.0 has an arbitrary file upload vulnerability, which can enable RCE or even… CVSS 3.1CRITICAL 9.8
- TI-2025-18995 yshopmall <=v1.9.0 is vulnerable to SQL Injection in the image listing interface. CVSS 3.1HIGH 7.2
- TI-2026-72003 Insecure direct object reference in yshopmall member address API CVSS 4.0HIGH 7.1
- TI-2026-62350 yshop-crm through 2.1.3 Missing Authorization via Disabled Annotation on System User Listing CVSS 4.0HIGH 7.1
- TI-2026-62349 yshop-crm through 2.1.3 Missing Authorization via CrmFlowController deleteFlowStep CVSS 4.0HIGH 7.1
- TI-2026-62347 yshop-crm through 2.1.3 Missing Authorization via CRM Operation-Log Listing CVSS 4.0HIGH 7.1
Sources
- CVE-2026-111703 · CVE Program
- CVE-2026-111703 · NVD
- FIRST EPSS
- GHSA-wgfx-4ghc-w92f · GitHub Advisory Database · CC BY 4.0
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