CVE-2000-0123 in Filemaker
Summary
by MITRE
The shopping cart application provided with Filemaker allows remote users to modify sensitive purchase information via hidden form fields.
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Analysis
by VulDB Data Team • 04/20/2026
The vulnerability described in CVE-2000-0123 represents a critical access control flaw within Filemaker's bundled shopping cart application that exposes sensitive purchase data to unauthorized remote modification. This issue stems from the application's improper handling of form field parameters, specifically allowing attackers to manipulate hidden form fields that typically contain sensitive purchase information such as product prices, quantities, and transaction details. The vulnerability exists due to inadequate input validation and insufficient server-side verification mechanisms that should have prevented unauthorized modifications to critical data fields. Attackers can exploit this weakness by directly manipulating the hidden form fields in the web interface, potentially altering purchase orders, modifying prices, or changing customer information without proper authentication or authorization.
This vulnerability directly maps to CWE-284 Access Control Issues, specifically the category of improper access control where applications fail to properly validate user inputs or enforce authorization checks. The flaw represents a classic example of insufficient input sanitization and lack of proper data validation, allowing attackers to bypass normal application security controls through manipulation of client-side form elements. The attack vector is particularly concerning as it operates entirely through web-based interfaces without requiring any specialized tools or deep system knowledge, making it accessible to attackers with basic web exploitation skills. The vulnerability demonstrates a fundamental failure in the application's security architecture where server-side validation relies on client-side data integrity rather than implementing robust verification mechanisms.
The operational impact of this vulnerability extends beyond simple data modification to encompass potential financial fraud, data integrity compromise, and customer information exposure. An attacker could manipulate purchase transactions to reduce prices, alter product quantities, or redirect orders to different destinations, potentially resulting in significant financial losses for the business. The vulnerability also poses risks to customer privacy and trust, as sensitive purchase information could be accessed or modified without proper authorization, potentially leading to identity theft or other malicious activities. The implications are particularly severe for e-commerce applications where transaction integrity is paramount, as this flaw undermines the fundamental security assumptions of the shopping cart system.
Organizations should implement comprehensive mitigations including server-side validation of all form inputs, implementation of proper access control mechanisms, and removal or proper encoding of hidden form fields that contain sensitive data. The solution requires enforcement of proper authentication and authorization checks at the server level, ensuring that all modifications to purchase information require valid user credentials and appropriate permissions. Security measures should include input validation, parameterized queries, and proper session management to prevent unauthorized modifications. Additionally, organizations should conduct regular security assessments and implement proper web application firewalls to detect and prevent manipulation of form parameters. The remediation process must address the root cause by ensuring that sensitive data is not exposed through client-side form fields and that all critical transaction data is validated and verified server-side before processing. This vulnerability highlights the importance of defense-in-depth security approaches and the necessity of implementing proper access controls and input validation mechanisms in web applications.