CVE-2006-5960 in A+ Store E-Commerce
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in account_login.asp in A+ Store E-Commerce allow remote attackers to inject arbitrary web script or HTML via the (1) username (txtUserName) and (2) password (txtPassword) parameters. NOTE: portions of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 04/27/2026
The vulnerability identified as CVE-2006-5960 represents a critical cross-site scripting weakness in the A+ Store E-Commerce platform's account_login.asp component. This flaw specifically affects the authentication interface where user credentials are processed, creating a pathway for malicious actors to execute arbitrary web scripts within the context of authenticated sessions. The vulnerability manifests through two primary input vectors: the username parameter named txtUserName and the password parameter designated as txtPassword, both of which fail to properly sanitize user input before processing. This weakness falls under the CWE-79 category of Cross-Site Scripting, specifically categorized as a reflected XSS vulnerability where malicious input is immediately reflected back to the user without adequate validation or encoding measures.
The operational impact of this vulnerability extends beyond simple data theft, as it enables attackers to manipulate the authentication process and potentially gain unauthorized access to user accounts. When legitimate users submit login credentials containing malicious scripts, these inputs are processed and stored within the application's session handling mechanism, creating opportunities for session hijacking, credential theft, and unauthorized account access. The vulnerability's presence in the core authentication module means that any successful exploitation could compromise the entire user base of the e-commerce platform, particularly affecting users who maintain administrative privileges or have access to sensitive transactional data. Attackers could craft malicious payloads that, when submitted through the login form, would execute in the victim's browser context, potentially stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions on behalf of authenticated users.
The attack surface for this vulnerability aligns with the ATT&CK framework's T1566.001 technique for initial access through spearphishing with malicious attachments, though in this case the attack vector would be more precisely categorized under T1213.002 for credential access through web application exploitation. The vulnerability demonstrates a classic lack of input validation and output encoding practices that have been widely documented in security standards and best practices since the early 2000s. Organizations utilizing this e-commerce platform would face significant risk exposure, particularly in environments where user authentication is critical for transaction processing, customer data protection, and business continuity. The vulnerability's persistence in the login form interface means that any user interaction with the authentication page could serve as an attack surface for exploitation, making it particularly dangerous for high-traffic e-commerce sites where login attempts occur frequently.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's authentication flow. The primary remediation involves ensuring that all user-supplied input, particularly in credential fields, undergoes strict sanitization before being processed or displayed. This includes implementing proper HTML encoding for all output, utilizing parameterized queries where applicable, and implementing Content Security Policy headers to prevent script execution. Security measures should also include regular input validation routines that reject or sanitize potentially malicious content before it can be processed by the application. Organizations should consider implementing additional layers of authentication such as multi-factor authentication to reduce the impact of credential compromise, while also establishing monitoring protocols to detect unusual login patterns that might indicate exploitation attempts. The vulnerability underscores the critical importance of secure coding practices and the necessity of regular security assessments to identify and remediate similar weaknesses in web applications.