Joomla jMarket Cross-Site Scripting Scanner

Joomla jMarket is a widely used e-commerce extension designed for Joomla CMS. It allows users to create a marketplace platform where various sellers can list their products. This extension is often utilized by web administrators managing small to medium-sized e-commerce platforms that require a multi-vendor setup. Its user-friendly interface and extensive functionalities make it a preferred choice among Joomla users aiming for a comprehensive online shopping experience. Joomla jMarket is favored for its seamless integration with Joomla and its capability to handle substantial transactions efficiently. It serves as a pivotal tool in enabling marketplace owners to manage their digital storefronts effectively.

Cross-Site Scripting (XSS) is a security vulnerability that allows an attacker to inject malicious scripts into web pages viewed by users. This vulnerability can lead to unauthorized actions being performed in a client’s browser when they visit an affected page. Attackers can craft malicious URLs that include the script payload, which executes upon accessing or interacting with affected site components. The primary objective of such attacks is often to steal sensitive information like session cookies or user credentials. In Joomla jMarket, XSS vulnerabilities can be exploited through crafted input fields or special URL parameters that lack adequate sanitization. The impact of a successful XSS attack can vary from data theft to complete control of a user's session.

In Joomla jMarket 5.15, the Cross-Site Scripting vulnerability is specifically found in certain endpoints that fail to properly sanitize user input. The parameter tasked with handling search queries in the catalog results is susceptible to injection of JavaScript code. When the application processes this malicious input, it executes the script in the victim's browser context. The vulnerable endpoint uses GET requests to process user inputs from the URL, which can be manipulated to include harmful scripts. In this case, keywords like "onfocus=alert(document.domain)" are key indicators of vulnerability, allowing the attacker to execute an alert in the victim's browser. It's crucial to ensure inputs are sanitized and validated to prevent such scripts from executing.

If exploited, the Cross-Site Scripting vulnerability in Joomla jMarket can have serious implications. An attacker leveraging this vulnerability could impersonate other users and gain unauthorized access to their accounts. This might lead to unauthorized transactions or data breaches involving sensitive personal information. Additionally, the trustworthiness of the affected website could be severely compromised if users are subjected to frequent malicious redirections or injections of advertising content. Over time, such vulnerabilities can tarnish the reputation of the business operating the website, resulting in a loss of customer trust and potential legal repercussions. Therefore, addressing XSS vulnerabilities promptly is critical to maintaining the integrity and security of web platforms.

REFERENCES

• https://packetstormsecurity.com/files/168581/Joomla-jMarket-5.15-Cross-Site-Scripting.html
• https://cxsecurity.com/issue/WLB-2022100002
• https://extensions.joomla.org/