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yshop-crm EUVDEUVD-2026-80660

| CVE-2026-92455 MEDIUM
Missing Authorization (CWE-862)
2026-09-16 VulnCheck GHSA-4mh9-9cjr-wqqp
Authentication Bypass Java Guchengwuyue Yshop Crm
5.3
CVSS 4.0 · Vendor: VulnCheck
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Vendor (VulnCheck) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.3 MEDIUM

Remote authenticated low-privilege user (PR:L) abuses missing authorization to send messages; integrity-low only (unauthorized message delivery), no confidentiality or availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Metadata Corrected
Sep 16, 2026 - 12:40 vuln.today
tag: Java added
Metadata Corrected
Sep 16, 2026 - 12:40 vuln.today
tag: Microsoft removed
Analysis Generated
Sep 16, 2026 - 11:53 vuln.today
CVE Published
Sep 16, 2026 - 11:07 cve.org
MEDIUM 5.3

DescriptionCVE.org

yshop-crm through 2.1.3 fails to enforce authorization on the sendSms and sendMail endpoints in CrmCustomerController, allowing any authenticated back-office user to send SMS and email to arbitrary customers. Attackers can invoke POST /admin-api/crm/customer/send-sms and POST /admin-api/crm/customer/send-mail with arbitrary customerIds, templateCode, and templateParams to deliver unauthorized messages through the organization's SMS and email channels.

AnalysisAI

Authenticated back-office users can abuse yshop-crm through 2.1.3 to send SMS and email to arbitrary customers via POST /admin-api/crm/customer/send-sms and /send-mail, because CrmCustomerController does not enforce authorization on those actions. Publicly available exploit code exists, but exploitation requires a valid back-office account (PR:L), is remote with no user interaction, and yields only limited integrity impact; no confidentiality or availability impact is assessed. …

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Attack ChainAIDerived

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Vulnerability AssessmentAI

Exploitation Requires a valid authenticated back-office account on yshop-crm ≤2.1.3 (PR:L) - the CrmCustomerController sendSms/sendMail endpoints perform no per-object authorization check, so any authenticated role can invoke them regardless of intended privilege. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine but low-to-moderate priority issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch is identified in the provided data at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-80660 vulnerability details – vuln.today
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