CVE-2025-49067 in Nasa Core Plugin
Summary
by MITRE • 06/06/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NasaTheme Nasa Core allows Stored XSS.This issue affects Nasa Core: from n/a before 6.4.1.
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Analysis
by VulDB Data Team • 06/06/2025
The vulnerability identified as CVE-2025-49067 represents a critical cross-site scripting weakness within the NasaTheme Nasa Core web application framework. This flaw resides in the improper neutralization of input during web page generation processes, creating a persistent security risk that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability specifically affects versions prior to 6.4.1 of the Nasa Core framework, indicating that organizations running older iterations remain exposed to potential exploitation. The stored nature of this XSS vulnerability means that malicious scripts are permanently stored on the server and executed whenever affected users access the compromised web pages, making it particularly dangerous for web applications that handle user-generated content or administrative interfaces.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the Nasa Core framework's content generation pipeline. When user-supplied data is processed and rendered in web pages without proper sanitization, attackers can inject malicious JavaScript code through various input vectors such as form fields, URL parameters, or API endpoints. The weakness manifests when the framework fails to adequately escape or encode special characters that could be interpreted as HTML or JavaScript code by web browsers. This allows attackers to craft payloads that execute in the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, and follows the ATT&CK technique T1059.007 for script execution through web applications.
The operational impact of this vulnerability extends beyond simple data theft or session manipulation, as it can enable attackers to establish persistent access to affected systems through session hijacking or privilege escalation. Organizations utilizing the Nasa Core framework may experience unauthorized access to sensitive administrative functions, data exfiltration, or the deployment of additional malicious payloads through compromised user sessions. The stored XSS nature means that even users who do not directly interact with the malicious input can be affected, as the injected scripts execute automatically when they access affected pages. This makes the vulnerability particularly dangerous for applications that serve multiple users or have extensive user interaction components, potentially affecting thousands of users within a single compromised system. The attack surface is broadened by the fact that the vulnerability exists in core framework functionality, meaning that any application built on this platform is vulnerable regardless of customizations or additional security measures implemented by developers.
Mitigation strategies for CVE-2025-49067 require immediate action to upgrade the Nasa Core framework to version 6.4.1 or later, which contains the necessary patches to address the input neutralization flaws. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied data before processing, utilizing proper output encoding techniques such as HTML entity encoding for web content. Security teams should conduct thorough vulnerability assessments of all applications built on the affected framework, identifying and patching any custom code that may be susceptible to similar XSS vulnerabilities. Additionally, implementing Content Security Policies and using web application firewalls can provide additional layers of protection against exploitation attempts. Regular security testing including automated scanning and manual penetration testing should be conducted to ensure that similar vulnerabilities are not present in other components of the web application stack. The remediation process should also include user education regarding the risks of clicking on suspicious links or entering data in untrusted environments, as social engineering remains a common attack vector for exploiting XSS vulnerabilities.