CVE-2026-9493: BankPro E-Service Technology｜Service Center - Insecure Direct Object Reference
Service Center developed by BankPro E-Service Technology has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify the parameter of a specific query function to access other users' EC order details.
HarborGuard Analysis
HarborGuard analysisSynopsis
An insecure direct object reference (IDOR) flaw in BankPro E-Service Technology's Service Center lets an authenticated remote attacker change a parameter in a query function to read other users' EC order details. The bug is reachable over the network and only requires a low-privilege account, with no victim interaction needed, and successful exploitation discloses order data belonging to other customers. No fix version has been published; HarborGuard tracks the advisory and will make a patched rebuild available the moment upstream ships one.
HarborGuard Coverage
Detection is available across every HarborGuard environment, with CVE-2026-9493 ingested from upstream feeds (including TWCERT) within minutes of publication and matched against Service Center images in customer registries and CI pipelines. Coverage extends to custom-built images that embed the affected component.
AvailableTriage is available using the published CVSS v4 score of 7.1 (High), reweighted by each environment's compliance policy so internet-exposed or regulated workloads escalate faster, and findings are routed to the appropriate inbox inside each customer org.
AvailableNo upstream fix has been published yet, so HarborGuard re-checks the advisory each ingest cycle and will make a patched-image rebuild available the moment BankPro ships a fixed version. For customers who opt into auto-remediation, the rebuild then triggers a regression run and a PR opened against affected workloads automatically.
Pending upstreamExploit Conditions
- Network reachabilityRequired
The attacker must reach the Service Center application over the network (AV:N).
- AuthenticationRequired
A low-privilege authenticated account is sufficient (PR:L); any valid user can attempt the parameter tampering.
- Victim interactionNot required
No action from another user is needed (UI:N); the attacker drives the request directly.
- Attack complexityDetail
Attack complexity is low (AC:L), so the exploit is reliable and free of environmental preconditions once a valid session exists.
Blast Radius
- Reads EC order details belonging to other users, including whatever order fields the query function exposes.
- No integrity impact: the flaw does not allow modification of orders or other records (VI:N).
- No availability impact: the service continues to run normally during exploitation (VA:N).
- Impact is confined to the vulnerable application; scope and downstream system confidentiality, integrity, and availability are unchanged (SC:N/SI:N/SA:N).
How HarborGuard Handles This
Available on HarborGuard: continuous monitoring of the TWCERT advisory for CVE-2026-9493, with the patched-image rebuild becoming available automatically the moment BankPro publishes a fixed Service Center version. In the meantime, compensating-control suggestions are surfaced per environment, including restricting Service Center exposure with network policy or VPN-only access, adding authorization checks or a WAF rule that validates the user-bound identifier on the affected query function, and increasing audit logging on order-lookup endpoints to catch enumeration. For customers who opt into auto-remediation, the eventual upstream fix triggers a rebuild, regression run, and PR opened against affected workloads without further action.
Metrics
- CVSS v4.0
- 7.1
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
- BankPro E-Service Technology / Service Center0
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