CVE-2010-2144 in eBay Clone Auction Script
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in signinform.php in Zeeways eBay Clone Auction Script allows remote attackers to inject arbitrary web script or HTML via the msg parameter. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 12/26/2025
The CVE-2010-2144 vulnerability represents a classic cross-site scripting flaw within the Zeeways eBay Clone Auction Script, specifically affecting the signinform.php component. This vulnerability resides in the application's handling of user input through the msg parameter, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The flaw demonstrates a fundamental weakness in input validation and output encoding practices that are critical for web application security.
This XSS vulnerability operates through a parameter injection attack vector where the msg parameter in signinform.php fails to properly sanitize or encode user-supplied data before rendering it in the application's response. When an attacker crafts a malicious payload and submits it through the msg parameter, the application processes this input without adequate security controls, allowing the malicious code to be stored and subsequently executed when other users view the affected page. The vulnerability is classified as a reflected XSS issue since the malicious script is executed through the application's response to the user's input rather than being permanently stored in the database.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal sensitive user information, manipulate application data, or redirect users to malicious websites. The attacker can exploit this vulnerability to impersonate legitimate users, access their accounts, and potentially compromise the entire user base that interacts with the auction platform. This type of vulnerability directly violates the principle of least privilege and can lead to unauthorized access to user credentials, personal information, and financial data within the auction environment.
From a security framework perspective, this vulnerability aligns with CWE-79 which describes improper neutralization of input during web page generation, and can be mapped to ATT&CK technique T1566 for initial access through malicious web content. The flaw represents a critical gap in the application's security posture, as it demonstrates poor input validation practices and inadequate output encoding mechanisms. Organizations using this auction script face significant risk of user data compromise and potential regulatory violations if user information is exposed through such vulnerabilities. The vulnerability also highlights the importance of implementing comprehensive security measures including input sanitization, output encoding, and regular security assessments to prevent similar issues in web applications.
Mitigation strategies for CVE-2010-2144 should include immediate implementation of proper input validation and output encoding for all user-supplied parameters, particularly those used in web forms and user interaction components. The application should employ context-specific encoding mechanisms such as HTML entity encoding for output rendering, and implement strict input validation rules that reject or sanitize potentially malicious content. Additionally, organizations should consider implementing Content Security Policy headers to limit the execution of unauthorized scripts, and conduct regular security testing including dynamic application security testing and manual code reviews to identify and remediate similar vulnerabilities. The fix should also include updating the Zeeways eBay Clone Auction Script to a version that addresses this specific XSS vulnerability, as the original implementation lacks adequate security controls for handling user input in web forms.