CVE-2024-29789 in OneClick Chat to Order Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Walter Pinem OneClick Chat to Order allows Stored XSS.This issue affects OneClick Chat to Order: from n/a through 1.0.5.
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Analysis
by VulDB Data Team • 04/12/2025
This vulnerability represents a critical cross-site scripting flaw that enables attackers to inject malicious scripts into web pages viewed by other users. The vulnerability exists within the Walter Pinem OneClick Chat to Order plugin, specifically in how it processes and renders user input during web page generation. The stored nature of this vulnerability means that malicious payloads persist in the application's database and are executed whenever affected pages are loaded, creating a persistent threat vector that can affect multiple users over extended periods. This type of vulnerability falls under CWE-79 which categorizes improper neutralization of input during web page generation, making it particularly dangerous as it allows attackers to execute malicious code in the context of the victim's browser.
The technical implementation flaw occurs when the plugin fails to properly sanitize or escape user-supplied data before incorporating it into dynamically generated web content. This lack of input validation and output encoding creates an opening for attackers to inject malicious scripts that can execute in the browser context of other users. The vulnerability is particularly concerning because it allows for persistent cross-site scripting attacks where malicious code can be stored and executed repeatedly without requiring users to interact with specific malicious links or pages. The affected version range from n/a through 1.0.5 indicates that this flaw has existed in multiple versions of the plugin, suggesting a fundamental issue in the input handling mechanism that was not properly addressed in the development lifecycle.
The operational impact of this vulnerability is significant as it allows attackers to perform various malicious activities including session hijacking, credential theft, data exfiltration, and redirection to malicious sites. An attacker could inject scripts that steal user cookies, capture keystrokes, or modify the functionality of the web application to redirect users to phishing sites. The stored nature of the vulnerability means that once a malicious payload is injected, it can affect any user who views the affected pages, potentially compromising multiple users simultaneously. This makes the vulnerability particularly dangerous for e-commerce or business communication platforms where user data and session information are frequently handled. The vulnerability also aligns with ATT&CK technique T1566 which covers social engineering tactics, as attackers can use XSS to manipulate users into performing actions that benefit the attacker.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data flow. Developers should employ proper sanitization techniques that remove or escape potentially dangerous characters and patterns from user input before processing or storing it. The plugin should implement Content Security Policy headers to limit the sources from which scripts can be loaded, and all user-supplied content should be properly escaped when rendered in web pages. Regular security audits and code reviews should be conducted to identify similar input handling vulnerabilities, and the development team should implement secure coding practices that follow OWASP Top Ten guidelines for preventing cross-site scripting attacks. Additionally, users should be encouraged to update to the latest version of the plugin once available, and administrators should monitor for any suspicious activity that might indicate exploitation attempts. The vulnerability demonstrates the importance of implementing defense-in-depth strategies that include both server-side input validation and client-side security measures to prevent such persistent threats from compromising user security.