CVE-2024-4214 in Car Dealer Plugin
Summary
by MITRE • 05/17/2024
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS vulnerability in Bill Minozzi Car Dealer allows Code Injection.This issue affects Car Dealer: from n/a through 4.15.
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Analysis
by VulDB Data Team • 03/29/2025
This vulnerability represents a classic cross-site scripting flaw that enables attackers to inject malicious code into web pages viewed by users. The issue manifests within the Bill Minozzi Car Dealer plugin where input validation fails to properly sanitize user-supplied data before rendering it in HTML contexts. This basic form of XSS occurs when the application directly incorporates user input into web page output without adequate encoding or filtering mechanisms. The vulnerability exists across all versions from the initial release through version 4.15, indicating a persistent flaw in the input handling logic that has not been adequately addressed in the codebase.
The technical exploitation of this vulnerability follows established patterns for reflected cross-site scripting attacks where malicious scripts can be executed in the context of a victim's browser session. Attackers can craft specially formatted input that, when processed by the vulnerable plugin, gets embedded directly into HTML output without proper neutralization of HTML tags. This allows for the execution of malicious JavaScript code that can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. The vulnerability specifically targets the improper handling of script-related HTML tags, which aligns with CWE-79 - Improper Neutralization of Input During Web Page Generation. This weakness creates a direct pathway for attackers to bypass client-side security controls and execute arbitrary code within the victim's browser environment.
The operational impact of this vulnerability extends beyond simple code injection to potentially compromise entire user sessions and enable more sophisticated attacks. An attacker who successfully exploits this vulnerability can access sensitive user data, manipulate the displayed content of the car dealer website, and potentially escalate privileges if the affected user has administrative capabilities. The vulnerability affects the core functionality of the Car Dealer plugin and could be leveraged to deface the website, steal customer information, or redirect traffic to phishing sites. This represents a significant security risk for businesses relying on the plugin for customer interactions and data management. The attack surface is particularly concerning given that the vulnerability exists across multiple versions, suggesting that organizations may be exposed for extended periods without awareness.
Mitigation strategies should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective immediate solution involves implementing strict HTML encoding for all user-supplied input before rendering it in web page contexts, which directly addresses the root cause identified in CWE-79. Organizations should also implement Content Security Policy headers to limit script execution and prevent unauthorized code injection. Regular security audits and input validation testing should be conducted to identify similar vulnerabilities in other parts of the application. Additionally, the plugin developers should implement comprehensive sanitization routines that strip or encode dangerous HTML characters and tags. For users, the immediate recommendation is to upgrade to the latest version of the plugin where the vulnerability has been patched, as this represents the most reliable defense against exploitation. This vulnerability also aligns with ATT&CK technique T1566.001 - Phishing: Email, where attackers might leverage the XSS to deliver malicious payloads through compromised website content, making prompt remediation essential for maintaining overall security posture.