CVE-2010-2147 in Com Mycar
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the My Car (com_mycar) component 1.0 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the modveh parameter to index.php.
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Analysis
by VulDB Data Team • 08/19/2025
The vulnerability identified as CVE-2010-2147 represents a critical cross-site scripting flaw within the My Car component version 1.0 for Joomla installations that utilize this particular component, making it a targeted threat for websites running vulnerable versions of the content management system.
The technical implementation of this XSS vulnerability stems from inadequate input validation and output encoding within the com_mycar component. When the modveh parameter is processed by the index.php script, it fails to properly sanitize or escape user-supplied data before incorporating it into dynamic web content. This lack of proper input sanitization creates an environment where attackers can inject malicious payloads that will execute in the browsers of unsuspecting users who visit affected pages. The flaw operates as a reflected XSS vulnerability since the malicious script is embedded in the URL parameter and reflected back to the user's browser without proper encoding or validation.
The operational impact of this vulnerability extends beyond simple script injection, potentially enabling attackers to perform session hijacking, deface websites, steal user credentials, or redirect victims to malicious domains. An attacker could craft a malicious URL containing crafted script code within the modveh parameter, which when visited by a victim with administrative privileges, could allow the attacker to execute commands with the privileges of the logged-in user. This could result in complete compromise of the affected Joomla! installation, particularly if administrators access the malicious link. The vulnerability's remote nature means that attackers do not require physical access to the system or local network presence to exploit the flaw.
Mitigation strategies for CVE-2010-2147 should focus on immediate remediation through component updates and input validation enhancements. Organizations should upgrade to the latest version of the My Car component or apply available security patches from the Joomla! community. Additionally, implementing proper input validation and output encoding mechanisms can prevent similar vulnerabilities from occurring in other components. Security measures should include the implementation of Content Security Policies, proper parameter sanitization, and regular security auditing of third-party extensions. This vulnerability aligns with CWE-79 which classifies cross-site scripting flaws, and represents a typical example of how unvalidated input can lead to severe security consequences in web applications. The ATT&CK framework categorizes this as a web application attack vector under the technique of code injection, specifically targeting user input handling within web frameworks. Organizations should also consider implementing web application firewalls and monitoring for suspicious parameter usage patterns to detect potential exploitation attempts.