TI-2026-70954 Aliases CVE-2026-109171 GHSA-h7m8-pw8h-m438

yshop-crm Missing Authorization on Contract Approval Endpoint

MEDIUM 57CWE-862Published 2026-10-12 · Updated 2026-10-26

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

yshop-crm through 2.1.3 has a missing authorization flaw (CWE-862) that lets any authenticated back-office user approve or reject contracts through POST /admin-api/crm/contract/check. The controller lacks an authorization annotation and approver checks are disabled, so approving a contract can alter customer deal and purchase data and rejecting it returns products to stock. 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 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00196 9th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

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-2026-109171
2026-10-12 Alias added: GHSA-h7m8-pw8h-m438
2026-10-26 CISA SSVC decision points changed
2026-10-26 Priority changed: LOW → MEDIUM

References

Exploit 1

Researcher Proof of Concept

Other 3

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

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences