CVE-2024-57277 in InnoShop
Summary
by MITRE • 01/24/2025
InnoShop V.0.3.8 and below is vulnerable to Cross Site Scripting (XSS) via SVG file upload.
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Analysis
by VulDB Data Team • 01/26/2026
The vulnerability identified as CVE-2024-57277 affects InnoShop versions 0.3.8 and earlier, presenting a critical cross site scripting risk through SVG file upload functionality. This vulnerability stems from insufficient input validation and sanitization mechanisms within the application's file upload processing system, specifically when handling Scalable Vector Graphics format files. The flaw allows malicious actors to upload SVG files containing malicious javascript code that executes in the context of other users' browsers when the uploaded file is viewed or processed by the application. The vulnerability is particularly concerning because SVG files are often treated as safe media assets and may bypass traditional security filters that are designed to block executable content. This issue falls under CWE-79 - Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly sanitize user-supplied data before incorporating it into web pages. The vulnerability enables attackers to execute arbitrary javascript code in victims' browsers, potentially leading to session hijacking, credential theft, data exfiltration, or redirection to malicious websites. The attack vector is particularly dangerous because it leverages the trust users place in visual media files, making it more likely to succeed in social engineering scenarios where users might inadvertently trigger the malicious code through normal browsing activities.
The operational impact of this vulnerability extends beyond simple script execution, as it can be exploited to create persistent threats within the application environment. When an attacker successfully uploads a malicious SVG file, the script executes in the context of the victim's session, potentially allowing for full browser compromise and access to sensitive data. The vulnerability affects the application's core file upload functionality and represents a significant weakening of the application's security posture. This weakness can be leveraged to perform various malicious activities including but not limited to stealing user sessions, redirecting users to phishing sites, defacing web pages, or establishing persistent backdoors through the execution of malicious javascript payloads. The vulnerability's exploitation does not require privileged access or complex attack chains, making it particularly dangerous for widespread impact. According to the MITRE ATT&CK framework, this vulnerability maps to T1059.007 - Command and Scripting Interpreter: JavaScript, as it enables execution of malicious javascript code through the web interface. The attack surface is broadened by the fact that SVG files are commonly used for icons, logos, and other visual elements, making the exploitation more likely to occur in normal application usage scenarios.
Mitigation strategies for CVE-2024-57277 must address both immediate remediation and long-term security improvements. The primary fix involves implementing comprehensive input validation and sanitization for all file uploads, particularly SVG files, by removing or neutralizing any executable javascript code from uploaded content. Organizations should implement strict file type validation that rejects SVG files containing potentially dangerous elements or attributes, and should consider converting uploaded SVG files to alternative formats that do not support scripting capabilities. The application should also implement Content Security Policy headers that restrict script execution and prevent unauthorized code injection. Security measures should include regular security audits of file upload functionalities, implementation of automated scanning for malicious content, and deployment of web application firewalls that can detect and block suspicious file upload activities. Additionally, the application should enforce proper access controls and authentication mechanisms to limit who can upload files, and should implement proper logging and monitoring to detect unauthorized file upload attempts. System administrators should also consider implementing file integrity checks and regular vulnerability assessments to identify similar weaknesses in related components. The remediation process should include updating to the latest version of InnoShop where this vulnerability has been addressed, and conducting thorough security testing to ensure that all file upload functionality properly handles malicious inputs without compromising application functionality or user experience.