CVE-2002-2362 in Mymarket
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in form_header.php in MyMarket 1.71 allows remote attackers to inject arbitrary web script or HTML via the noticemsg parameter.
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Analysis
by VulDB Data Team • 08/26/2025
The vulnerability identified as CVE-2002-2362 represents a classic cross-site scripting flaw within the MyMarket 1.71 web application, specifically affecting the form_header.php component. This security weakness enables malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers, fundamentally compromising the application's integrity and user security. The vulnerability manifests through the improper handling of the noticemsg parameter, which serves as an entry point for attackers to inject malicious content into the application's user interface.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the MyMarket application's form_header.php file. When the application processes the noticemsg parameter without adequate sanitization, it directly incorporates user-supplied data into the web page's HTML structure. This failure to properly escape or filter special characters allows attackers to inject script tags, JavaScript code, or other malicious HTML elements that execute in the victim's browser context. The vulnerability is classified as a reflected XSS attack since the malicious payload is reflected back to users through the application's response without being stored on the server.
The operational impact of this vulnerability extends beyond simple data theft or defacement, creating a persistent security risk for all users interacting with the MyMarket application. Attackers can leverage this flaw to steal session cookies, perform unauthorized transactions, redirect users to malicious websites, or even escalate privileges within the application. The vulnerability affects the application's core functionality by potentially compromising user authentication mechanisms and enabling unauthorized access to sensitive data. Users who encounter the malicious content may unknowingly execute code that can lead to complete account compromise or further exploitation of the underlying system.
Security practitioners should address this vulnerability by implementing comprehensive input validation and output encoding measures across all user-supplied parameters. The fix requires proper sanitization of the noticemsg parameter through HTML entity encoding before rendering user input in the application's interface. Additionally, implementing a Content Security Policy (CSP) can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be executed. Organizations should also consider implementing the principle of least privilege and regularly updating their applications to prevent similar vulnerabilities from persisting in the software ecosystem. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and follows patterns commonly associated with attack techniques categorized under the ATT&CK framework's TA0001 Initial Access and TA0002 Execution domains, highlighting the importance of securing web application input handling mechanisms to prevent unauthorized code execution.