CVE-2024-49678 in js paper Plugin
Summary
by MITRE • 10/29/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Jinwen js allows Reflected XSS.This issue affects js paper: from n/a through 2.5.7.
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Analysis
by VulDB Data Team • 03/02/2025
The vulnerability identified as CVE-2024-49678 represents a critical security flaw in the Jinwen js library that enables reflected cross-site scripting attacks through improper input neutralization during web page generation. This weakness specifically impacts the js paper component within the Jinwen js framework, affecting versions ranging from n/a through 2.5.7. The vulnerability falls under the established CWE-79 category for Cross-Site Scripting and aligns with the ATT&CK technique T1190 for Exploit Public-Facing Application, making it a significant concern for web application security.
The technical flaw manifests when the js paper component fails to properly sanitize or escape user-supplied input before incorporating it into dynamically generated web pages. This improper neutralization creates an avenue for attackers to inject malicious scripts that execute in the context of other users' browsers. The reflected nature of this vulnerability means that malicious input must be crafted specifically for a particular request and delivered via a crafted URL or form submission, making it particularly dangerous in scenarios where users might be tricked into clicking malicious links or submitting crafted forms. The vulnerability occurs during the web page generation process where user input is directly embedded into HTML output without adequate sanitization measures.
The operational impact of this reflected XSS vulnerability extends beyond simple data theft or session hijacking. Attackers can leverage this weakness to execute arbitrary JavaScript code in victims' browsers, potentially leading to complete compromise of user sessions, data exfiltration, defacement of web applications, or redirection to malicious sites. The affected js paper component suggests that any web application utilizing this library for generating dynamic content or processing user inputs becomes vulnerable to these attacks. The specific version range indicates that all installations from the initial release through 2.5.7 are at risk, requiring immediate attention from system administrators and security teams.
Mitigation strategies for CVE-2024-49678 should prioritize immediate remediation through version upgrades to the latest stable release of the Jinwen js library that addresses this vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar issues in their applications. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to limit the impact of successful XSS attacks. Regular security assessments and dependency monitoring are essential to identify and address similar vulnerabilities in third-party libraries. Security teams should also consider implementing web application firewalls and runtime application self-protection mechanisms to detect and prevent exploitation attempts. Additionally, user education regarding suspicious links and the importance of keeping software updated remains crucial for comprehensive security posture maintenance.