BankPro Service Center CVE-2026-9493

No vendor-released patch version is identified in the provided data; operators should contact BankPro E-Service Technology directly and consult the TWCERT advisories (https://www.twcert.org.tw/en/cp-139-10940-d90bd-2.html and https://www.twcert.org.tw/tw/cp-132-10938-97ddd-1.html) for the official fix and any vendor-supplied hotfix bulletin. The primary remediation is a code-level fix that enforces server-side authorization on the affected query function so that the session's user identity - not the client-supplied parameter - determines which order records can be returned; this typically means joining queries on the authenticated user ID or checking ownership in a middleware layer. Until the vendor patch is applied, compensating controls include placing the EC order query endpoint behind a WAF rule that flags rapid sequential or out-of-range identifier enumeration (trade-off: legitimate batch lookups may be blocked), enabling verbose access logging on the order endpoint and alerting on a single account fetching disparate user IDs (trade-off: log volume and analyst burden), and tightening session controls (short timeouts, MFA for sensitive views) to raise the cost of obtaining the low-privileged account needed to exploit the issue.