# CVE-2026-109171: yshop-crm missing authorization in contract approval

Source: https://junglewise.ai/threats/cve-2026-109171-yshop-crm-through-2-1-3-contains-a-missing-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109171 · Severity: medium · CVSS 4.3 · Published 2026-10-12

yshop-crm is a customer relationship management system used to manage contracts and customer purchases. A missing authorization check allows any authenticated back-office user to approve or reject contracts without proper permissions, potentially enabling unauthorized changes to customer orders, deal status, or inventory. An attacker with basic back-office access can manipulate contract data, approve fraudulent deals, or return products to stock without authorization.

## Quick answers

**Is CVE-2026-109171 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109171 being exploited in the wild.

**How severe is CVE-2026-109171?** Medium severity, with a CVSS score of 4.3, published 12 October 2026.

**Which products and versions are affected?** Yshop-Crm through 2.1.3.

**Is there a fix for CVE-2026-109171?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-109171 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-109171?** Check whether you run Yshop-Crm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The CrmContractController endpoint POST /admin-api/crm/contract/check lacks @PreAuthorize annotation and has commented-out checks for approver identity and validity, allowing any authenticated user to bypass authorization. The vulnerability permits an authenticated attacker to invoke contract approval/rejection logic via the unauthenticated business layer, resulting in modification of customer deal status, purchase counts, and inventory without the required crm:contract:* permissions. No authentication bypass is required; exploitation requires valid back-office credentials.

## Affected products

- yshop-crm through 2.1.3

## Timeline

- 2026-10-12: disclosed

## References

- [https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/yshop-crm/poc_crm_contract_check.py](https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/yshop-crm/poc_crm_contract_check.py)
- [https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/sql/yshop-crm-open-source.sql](https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/sql/yshop-crm-open-source.sql)