CVE intelligence and bounded remediation

CVE-2023-27088 — feiqu-opensource Background Vertical authorization vulnerability exists in IndexController.java

High CVSS 8.8

feiqu-opensource Background Vertical authorization vulnerability exists in IndexController.java. demo users with low permission can perform operations within the permission of the admin super administrator and can use this vulnerability to change the blacklist IP address in the system at will.

Severity
High
CVSS
8.8 (3.1)
Published
2023-03-08
CISA KEV
Not currently listed
Ecosystem
java/maven
Weaknesses
CWE-284

Affected products

  • feiqu-opensource_project / feiqu-opensource

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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