Medium severity · published Oct 12, 2026
CVE-2026-109171
yshop-crm through 2.1.3 Missing Authorization via /admin-api/crm/contract/check
4.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YS
yshop-crm · guchengwuyue
through 2.1.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109171
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109171
exploit
https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/yshop-crm/poc_crm_contract_check.py
technical-description
https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/controller/admin/crmcontract/CrmContractController.java#L100-L106
technical-description
https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/service/crmcontract/CrmContractServiceImpl.java#L315-L432
technical-description
https://github.com/guchengwuyue/yshop-crm/blob/a77250f7ace63d5b6b363841d9ff441e0e2a9a6b/yshop-crm/sql/yshop-crm-open-source.sql#L2637
third-party-advisory
https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-missing-authorization-via-admin-api-crm-contract-check
More from yshop-crm
7.1
CVE-2026-92456
yshop-crm through 2.1.3 Missing Authorization via CRM Customer Rule-Configuration Endpoints
6.5
CVE-2026-92463
yshop-crm through 2.1.3 Missing Authorization via Disabled Annotation on System User Listing
6.5
CVE-2026-92462
yshop-crm through 2.1.3 Missing Authorization via CrmFlowController deleteFlowStep
6.5
CVE-2026-92460
yshop-crm through 2.1.3 Missing Authorization via CRM Operation-Log Listing
6.5
CVE-2026-92459
yshop-crm through 2.1.3 Missing Authorization via CRM Lead-Claim Endpoint