CVE-2000-0102 in SalesCart
Summary
by MITRE
The SalesCart shopping cart application 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 identified as CVE-2000-0102 affects the SalesCart shopping cart application, representing a critical security flaw that enables remote attackers to manipulate sensitive purchase data through manipulation of hidden form fields. This issue falls under the category of input validation and data integrity vulnerabilities, specifically demonstrating how insufficient server-side validation can lead to unauthorized data modification. The flaw exists in the application's handling of form data where sensitive purchase information is transmitted through hidden HTML form fields that are typically not visible to end users but can be easily modified by malicious actors.
The technical implementation of this vulnerability stems from the application's failure to properly validate and sanitize input data received from client-side forms. When users submit purchase information through the shopping cart interface, the application relies on hidden form fields to store and transmit sensitive data such as product prices, quantities, or customer details. These hidden fields are not protected against modification by attackers who can use various tools to inspect and alter the HTML source code or directly manipulate the form data before submission. The vulnerability is particularly dangerous because it allows attackers to modify purchase totals, product quantities, or other financial information without requiring authentication or administrative privileges.
From an operational impact perspective, this vulnerability creates significant risks for e-commerce operations and financial integrity. Attackers can potentially increase product prices, reduce quantities, or manipulate order totals to their advantage, leading to direct financial losses for merchants. The vulnerability also poses risks to customer trust and data integrity, as unauthorized modifications to purchase information could result in incorrect order fulfillment or billing discrepancies. Additionally, the ease of exploitation means that attackers can perform these modifications at scale, potentially affecting multiple transactions simultaneously. This vulnerability aligns with CWE-20, which describes improper input validation, and represents a classic example of how client-side data validation can be bypassed to compromise server-side data integrity.
The attack surface for this vulnerability is particularly broad given that it affects web-based shopping cart applications that rely on standard HTML form submissions. The exploitation process typically involves intercepting form data, modifying hidden field values, and resubmitting the altered form to the server. This technique can be automated using web scraping tools or manual manipulation, making it accessible to attackers with basic technical knowledge. The vulnerability also demonstrates the importance of implementing proper access controls and data validation at multiple layers of the application architecture, as the issue occurs at the application logic level where server-side validation should have prevented unauthorized modifications. Mitigation strategies should include implementing server-side validation of all input data, using secure session management, implementing proper access controls, and employing cryptographic measures to ensure data integrity. The vulnerability also highlights the need for comprehensive security testing including penetration testing and code review processes to identify similar issues in web applications. Organizations should consider implementing additional security controls such as transaction logging, anomaly detection systems, and regular security audits to prevent exploitation of similar vulnerabilities in their e-commerce platforms. This type of vulnerability is particularly relevant to the ATT&CK framework under the technique of privilege escalation and data manipulation, where attackers can modify application data to achieve unauthorized financial gain or operational disruption.