CVE-2022-3063
Summary
by MITRE • 08/30/2022
Cross-site Scripting (XSS) - Generic in GitHub repository nuxt/framework prior to -.
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Analysis
by VulDB Data Team • 05/14/2026
Cross-site scripting vulnerabilities represent one of the most prevalent and dangerous web application security flaws, with the generic nature of this issue in the nuxt/framework repository indicating a fundamental weakness in input validation and output sanitization mechanisms. The vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of victims. This type of flaw typically arises when applications fail to properly encode or escape user-controllable data before rendering it in web responses, creating opportunities for attackers to execute arbitrary javascript code within the context of the affected website.
The technical implementation of this generic XSS vulnerability in the nuxt/framework repository demonstrates a failure in the framework's core security controls, specifically in how it handles user input processing and content rendering. When user-provided data is not adequately sanitized or encoded before being included in dynamic web content, attackers can inject malicious script payloads that execute in the victim's browser. This vulnerability operates at the application layer and can affect various components including forms, URL parameters, cookies, and API responses. The impact extends beyond simple script execution to potential privilege escalation, as attackers may leverage XSS to gain access to user sessions, steal sensitive information, or manipulate application functionality through techniques such as session fixation or credential theft.
The operational consequences of this vulnerability within the nuxt/framework ecosystem are significant, particularly given the widespread adoption of this framework for building modern web applications. Attackers can exploit this weakness to compromise user accounts, steal authentication tokens, redirect users to malicious sites, or perform actions as authenticated users. The vulnerability's generic nature suggests it affects multiple components or pathways within the framework, potentially making it more difficult to patch comprehensively. Organizations using this framework may experience data breaches, regulatory compliance violations, and reputational damage if attackers successfully exploit this flaw to access sensitive user information or system resources. The vulnerability also creates opportunities for attackers to establish persistent access through session manipulation or by leveraging the compromised application as a launching point for further attacks.
Mitigation strategies for this XSS vulnerability must address both the immediate security gap and implement comprehensive input validation and output encoding mechanisms throughout the framework. The recommended approach includes implementing proper content security policies, utilizing framework-specific sanitization functions, and ensuring all user-controllable data is properly escaped before rendering. Security controls should incorporate automatic input validation, output encoding, and secure coding practices that align with established security standards such as those defined in the CWE (Common Weakness Enumeration) catalog under weakness identifier 79 for cross-site scripting. Organizations should also consider implementing web application firewalls, regular security scanning, and comprehensive code reviews to identify and remediate similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under the technique of "Command and Scripting Interpreter" with specific relevance to "T1059.007 - Command and Scripting Interpreter: JavaScript" and "T1566.001 - Phishing: Spearphishing Attachment" when attackers leverage XSS for initial access or privilege escalation. Regular updates and patches to the nuxt/framework repository are essential to address this vulnerability, alongside proper security training for developers to prevent similar issues in custom implementations.