CVE-2026-109171 yshop-crm through 2.1.3 Missing Authorization via /admin-api/crm/contract/check
Authenticated users can approve or reject contracts without proper authorization, altering customer deal and purchase data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109171?
CVE-2026-109171 is a medium-severity missing authorization vulnerability in guchengwuyue yshop-crm, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-109171?
How do I fix CVE-2026-109171?
No fix has been published for CVE-2026-109171 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-109171 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109171 exists.
Sources
Also known as GHSA-h7m8-pw8h-m438.