osCommerce is a widely-used open-source e-commerce platform that allows users to create and manage online stores. It is utilized by small to medium-sized businesses for its comprehensive features and flexibility. The platform supports a range of plugins and customization options to enhance functionality. Developed by a community of developers, it is continuously updated to address security and performance issues. osCommerce is popular for its ease of use and extensive community support.
The Cross-Site Scripting (XSS) vulnerability in osCommerce v4.0 allows attackers to inject malicious scripts into web pages viewed by other users. This can be exploited remotely without authentication. The vulnerability affects the /catalog/all-products endpoint by manipulating the 'cat' parameter. Successful exploitation can result in the execution of arbitrary scripts in the context of the user's browser.
The vulnerability is found in the /catalog/all-products endpoint of osCommerce v4.0. By manipulating the 'cat' parameter, attackers can inject JavaScript code that gets executed when the page is viewed. This occurs due to insufficient input validation and escaping of user-supplied data. The specific payload used to trigger this vulnerability involves embedding a script tag within the parameter value. This leads to the execution of the injected script in the context of the victim's browser session.
Exploiting this vulnerability can lead to several harmful effects, including the theft of user session cookies, enabling the attacker to hijack sessions. It can also be used to deface web pages, redirect users to malicious sites, and perform other malicious actions. Additionally, sensitive information displayed on the affected web pages can be exposed to the attacker. Persistent exploitation can degrade user trust and damage the reputation of the affected e-commerce site.
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References:
- Validate and sanitize all user inputs to prevent the injection of malicious scripts.
- Implement output encoding to escape any dynamic content before rendering it in the browser.
- Use Content Security Policy (CSP) to restrict the execution of untrusted scripts.
- Regularly update and patch your software to incorporate the latest security fixes.
- Conduct regular security assessments to identify and address vulnerabilities promptly.
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