Missing authorization in yshop-crm allows receivables approval
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The yshop-crm product from guchengwuyue through 2.1.3 lacks authorization checks (CWE-862) on its contract receivables approval endpoint. Any authenticated back-office user can approve or reject receivables records by id, which inflates contract return money and forges approval logs. The attack is remote over the network and needs only low privileges. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
yshop-crm through 2.1.3 contains a missing authorization vulnerability that allows any authenticated back-office user to approve or reject receivables records by calling POST /admin-api/crm/contract-receivables/check. The handler lacks a @PreAuthorize check and the approver checks in CrmContractReceivablesServiceImpl.check are commented out, so attackers can approve records by id, inflating contract return_money and forging approval logs.
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 · 2026-10-29
Timeline
- 2026-10-12 Threatist record created from CVE-2026-109172
- 2026-10-12 Alias added: GHSA-6wf4-4qm3-33w8
- 2026-10-15 CISA SSVC decision points changed
- 2026-10-15 Priority changed: LOW → MEDIUM
References
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-2026-109172 · CVE Program
- CVE-2026-109172 · NVD
- FIRST EPSS
- GHSA-6wf4-4qm3-33w8 · GitHub Advisory Database · CC BY 4.0
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