CVE-2022-0395 in livehelperchat
Summary
by MITRE • 01/29/2022
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
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Analysis
by VulDB Data Team • 02/02/2022
The vulnerability identified as CVE-2022-0395 represents a stored cross-site scripting flaw discovered in the Packagist remdex/livehelperchat software package before version 3.93. This type of vulnerability falls under the broader category of web application security weaknesses that can have significant implications for user data and system integrity. The vulnerability specifically affects the livehelperchat application which is commonly used for customer support and live chat functionalities in web applications.
The technical implementation of this stored XSS vulnerability occurs when user input is not properly sanitized or validated before being stored in the application's database and subsequently rendered back to other users. In the context of livehelperchat, this typically manifests when chat messages, user names, or other input fields contain malicious script code that gets executed in the browsers of other users who view the affected content. The stored nature of this vulnerability means that the malicious payload persists in the system and affects multiple users over time rather than being a one-time execution scenario.
From an operational perspective, this vulnerability creates a serious risk for organizations using the livehelperchat application as it allows attackers to inject malicious scripts that can steal session cookies, perform unauthorized actions on behalf of users, or redirect users to malicious websites. The impact extends beyond simple data theft as attackers can leverage this vulnerability to establish persistent access to user sessions and potentially escalate privileges within the application. The vulnerability's presence in the remdex/livehelperchat package indicates that any system utilizing this specific version range is at risk of exploitation, making it a critical concern for organizations maintaining customer support chat systems.
The vulnerability can be mapped to CWE-79 which specifically addresses cross-site scripting flaws in web applications, and aligns with ATT&CK technique T1566.001 which covers social engineering through phishing attacks that can be facilitated by XSS vulnerabilities. Security practitioners should note that this vulnerability represents a common attack vector that has been exploited in numerous real-world scenarios where attackers target web applications to gain unauthorized access to user sessions and sensitive information. The remediation approach requires immediate patching to version 3.93 or later, along with comprehensive input validation and output encoding mechanisms to prevent similar issues in the future.
Organizations should implement a multi-layered defense strategy that includes regular security assessments of third-party components, automated vulnerability scanning tools, and strict input validation policies. The patching process must be prioritized and tested thoroughly to ensure that the fix does not introduce regressions in application functionality. Additionally, implementing Content Security Policy headers and other browser-based protections can provide additional defense in depth against exploitation attempts. Security monitoring should be enhanced to detect unusual patterns in chat message content that might indicate exploitation attempts, and user access controls should be reviewed to limit the potential impact of successful attacks. The vulnerability serves as a reminder of the importance of maintaining current versions of open source software and implementing proper security controls throughout the application development lifecycle.