CVE-2023-43734 in Os Commerce
Summary
by MITRE • 10/25/2023
Os Commerce is currently susceptible to a Cross-Site Scripting (XSS) vulnerability. This vulnerability allows attackers to inject JS through the "name" parameter, potentially leading to unauthorized execution of scripts within a user's web browser.
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Analysis
by VulDB Data Team • 10/25/2023
The vulnerability identified as CVE-2023-43734 represents a critical cross-site scripting flaw within the Os Commerce platform that exposes end users to significant security risks. This weakness resides in the application's handling of user input through the "name" parameter, which fails to properly sanitize or validate data before processing. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that enables attackers to inject malicious scripts into web pages viewed by other users.
The technical implementation of this vulnerability allows adversaries to execute arbitrary JavaScript code within the victim's browser context through crafted input submitted via the name parameter. When the application processes this parameter without adequate input validation or output encoding, it creates an environment where malicious scripts can be stored and subsequently executed whenever the compromised data is rendered to users. This behavior aligns with the ATT&CK technique T1531 for "Run-time Process Injection" and T1059.007 for "Command and Scripting Interpreter: JavaScript', demonstrating how attackers can leverage web application flaws to establish persistent execution environments.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal sensitive user credentials, manipulate web content, or redirect users to malicious sites. Users interacting with compromised Os Commerce installations become potential victims of phishing attacks, data theft, and unauthorized access to their accounts. The vulnerability's exploitation requires minimal effort from attackers, making it particularly dangerous as it can be automated and scaled across multiple installations. This weakness directly violates security principles outlined in OWASP Top Ten 2021, specifically targeting the A03:2021 - Injection category, where improper input handling creates opportunities for attackers to manipulate application behavior.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data flow. Developers must ensure that all user-supplied data, particularly parameters like "name", undergo strict sanitization before being processed or stored. The implementation of Content Security Policy headers, proper HTML escaping, and parameterized queries can significantly reduce the attack surface. Additionally, regular security code reviews, automated vulnerability scanning, and maintaining up-to-date application versions should be enforced as part of the security operations framework. Organizations should also consider implementing Web Application Firewalls to detect and prevent malicious payloads from reaching the application layer, while monitoring for suspicious parameter usage patterns that may indicate exploitation attempts.