CVE-2024-40513 in Chatvia
Summary
by MITRE • 01/17/2025
An issue in themesebrand Chatvia v.5.3.2 allows a remote attacker to execute arbitrary code via the User profile Upload image function.
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Analysis
by VulDB Data Team • 01/17/2025
The vulnerability identified as CVE-2024-40513 resides within the Chatvia theme version 5.3.2 developed by themesebrand, presenting a critical remote code execution risk through the user profile image upload functionality. This flaw represents a severe security weakness that directly impacts the theme's file handling mechanisms and user authentication processes. The vulnerability stems from inadequate input validation and sanitization within the image upload component, allowing malicious actors to bypass security controls and inject malicious code into the system.
The technical exploitation of this vulnerability occurs when an attacker uploads a specially crafted image file that contains malicious code or leverages the upload functionality to execute arbitrary commands on the target system. This type of vulnerability typically falls under CWE-434 which describes "Unrestricted Upload of File with Dangerous Type" and aligns with ATT&CK technique T1190 "Exploit Public-Facing Application" as it targets publicly accessible web applications. The flaw enables attackers to upload files that can be executed by the web server, potentially leading to complete system compromise.
The operational impact of CVE-2024-40513 extends beyond simple code execution, as it can enable attackers to establish persistent access, escalate privileges, and potentially move laterally within affected networks. Systems running the vulnerable Chatvia theme are at risk of data breaches, system takeover, and unauthorized access to sensitive information stored within the application. The vulnerability affects any environment where the theme is deployed, particularly those with default configurations or insufficient security hardening measures.
Security mitigation strategies for this vulnerability include immediate patching of the Chatvia theme to version 5.3.3 or later, which should contain the necessary fixes for the upload validation mechanisms. Organizations should implement strict file type validation and sanitization processes, restrict upload directories, and employ content security policies to prevent execution of uploaded files. Network segmentation and monitoring solutions should be deployed to detect anomalous upload activities. Additionally, implementing web application firewalls and regular security assessments can help identify and prevent exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and secure file handling practices in web applications, aligning with industry best practices outlined in OWASP Top Ten and NIST cybersecurity frameworks.