EUVD-2026-80668
GHSA-fxr9-cwrf-jj7v
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Remote authenticated back-office user (PR:L) with a data-scope-ALL role reaches an unprotected endpoint; confidentiality-only mass PII disclosure, no integrity or availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
yshop-crm through 2.1.3 contains an authorization failure in the GET /admin-api/system/user/page endpoint where the @PreAuthorize annotation is commented out, allowing authenticated back-office users without system:user:list permission to enumerate all users. Attackers with valid back-office credentials and a role with data scope ALL can retrieve the complete user directory including login names, nicknames, departments, email addresses, mobile numbers, and last login information.
AnalysisAI
Authenticated back-office users of yshop-crm through 2.1.3 can enumerate the complete user directory via GET /admin-api/system/user/page because the endpoint's @PreAuthorize('system:user:list') gate is commented out in UserController.java. The flaw is a broken-access-control issue (CWE-862) that requires valid admin-panel credentials plus a role configured with data scope ALL; without that scope the query returns little of value, but with it an attacker can harvest login names, nicknames, departments, emails, mobile numbers, and last-login metadata. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires the attacker to already possess valid back-office (admin panel) credentials for yshop-crm and, critically, a role configured with data scope ALL - without that data-scope setting the enumeration returns nothing meaningful. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a broken-access-control / missing-authorization flaw (CWE-862), not a pre-auth vulnerability. … 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 or fixed version has been identified at time of analysis, so the primary action is source-level: re-enable the commented-out @PreAuthorize("system:user:list") annotation on the getPage handler in UserController.java (line ~92 in the referenced commit) and rebuild/redeploy the yshop-module-system-biz module - the trade-off is that any internal caller or front-end flow currently relying on unannotated access will start receiving 403 responses until the permission is granted, so verify the admin UI grants system:user:list to intended roles first. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every yshop-crm instance running version 2.1.3 or earlier, identify which roles are configured with data scope ALL, and restrict access to the /admin-api/* paths to trusted management networks or VPN while enabling detailed audit logging on the GET /admin-api/system/user/page endpoint. …
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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