CVE-2022-0374 in livehelperchat
Summary
by MITRE • 01/26/2022
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
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Analysis
by VulDB Data Team • 01/29/2022
The vulnerability identified as CVE-2022-0374 represents a stored cross-site scripting flaw within the Packagist remdex/livehelperchat software version prior to 3.93. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting attacks where malicious scripts are injected into web applications and then executed in the context of other users' browsers. The issue manifests in the live helper chat application that serves as a customer support platform, making it particularly concerning for organizations relying on web-based communication systems. The vulnerability stems from inadequate input validation and output encoding mechanisms within the application's data handling processes, allowing attackers to inject malicious JavaScript code that persists in the application's database and executes whenever affected users view the compromised content.
The technical exploitation of this stored XSS vulnerability occurs when an attacker crafts malicious input containing JavaScript code and submits it through the application's interface. This input is then stored in the database and subsequently rendered to other users without proper sanitization or encoding. The flaw enables attackers to execute arbitrary scripts in victims' browsers, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability's impact is amplified because it affects the core functionality of the live chat system, which typically handles sensitive customer communications and personal data. Attackers can leverage this vulnerability to gain unauthorized access to user sessions, modify chat content, or even escalate privileges within the application's environment. The persistence of the attack vector through stored data makes it particularly dangerous as it can affect multiple users over extended periods without requiring repeated exploitation attempts.
The operational impact of CVE-2022-0374 extends beyond simple script execution, creating significant risks for organizations utilizing the live helper chat system. Security professionals should consider this vulnerability in their threat modeling and incident response planning, as it aligns with ATT&CK technique T1566.001 for initial access through malicious web content and T1546.003 for persistence through web shell deployment. Organizations may experience data breaches, loss of customer trust, regulatory compliance violations, and potential legal consequences. The vulnerability affects not only the immediate application functionality but also undermines the overall security posture of systems that rely on this chat platform. Users who interact with the compromised system may unknowingly execute malicious code, leading to cascading security incidents that could compromise entire network infrastructures. The stored nature of the vulnerability means that once exploited, the malicious code remains active until the application is properly patched and updated.
Mitigation strategies for CVE-2022-0374 require immediate implementation of proper input validation and output encoding mechanisms throughout the application's data processing pipeline. Organizations should upgrade to version 3.93 or later of the remdex/livehelperchat application to receive the necessary security patches that address the XSS vulnerability. Security measures must include implementing Content Security Policy headers to restrict script execution, sanitizing all user inputs using appropriate encoding techniques, and regularly auditing application code for similar vulnerabilities. The remediation process should also involve comprehensive security testing including dynamic application security testing and manual penetration testing to identify other potential XSS vectors within the system. Additionally, organizations should establish robust monitoring procedures to detect unauthorized modifications to the application's data and implement proper access controls to limit who can submit content to the chat system. Regular security awareness training for developers and administrators will help prevent similar vulnerabilities from being introduced in future versions of the application.