In your installation of Oracle 9iAS, it is possible to access a demo (PORTAL_DEMO.ORG_CHART) via mod_plsql. Access to these pages should be restricted, because it may be possible to abuse this demo for SQL Injection attacks.

Remove the Execute for Public grant from the PL/SQL package in schema PORTAL_DEMO (REVOKE execute ON portal_demo.org_chart FROM public ). Please check also Oracle Security Alert 61 for patch-information. Reference : http://otn.oracle.com/deploy/security/pdf/2003alert61_2.pdf