CVE-2024-28713 in Blog System
Summary
by MITRE • 03/28/2024
An issue in Mblog Blog system v.3.5.0 allows an attacker to execute arbitrary code via a crafted file to the theme management feature.
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Analysis
by VulDB Data Team • 07/11/2026
The vulnerability identified as CVE-2024-28713 affects the Mblog Blog system version 3.5.0 and represents a critical security flaw in the theme management functionality. This issue enables remote attackers to achieve arbitrary code execution by uploading a specially crafted file through the theme management interface. The vulnerability stems from insufficient input validation and file handling mechanisms within the application's theme upload process, creating a pathway for malicious actors to bypass security controls and inject malicious code into the system.
This vulnerability falls under the CWE-434 category of Unrestricted Upload of File with Dangerous Type, which is a well-documented weakness in web applications where user-supplied files are accepted without proper validation of their content or type. The attack vector leverages the theme management feature, which typically allows administrators to customize the appearance and functionality of their blog through downloadable themes. However, the lack of proper file type checking and content validation creates an exploitable condition where attackers can upload malicious files that execute arbitrary code on the target system. The implications extend beyond simple code execution as this vulnerability can lead to complete system compromise, data exfiltration, and persistent backdoor access.
The operational impact of this vulnerability is severe and multifaceted, potentially affecting organizations that rely on the Mblog Blog system for their content management needs. Successful exploitation could result in unauthorized access to sensitive data, modification of content, and establishment of persistent access points within the network. Attackers could leverage this vulnerability to deploy malware, establish command and control channels, or use the compromised system as a launchpad for further attacks against other network resources. The threat landscape for such vulnerabilities aligns with ATT&CK technique T1505.003 for Server Software Component, where adversaries compromise systems through vulnerable web applications. Organizations may experience service disruption, data breaches, and potential regulatory compliance violations, particularly in environments where the blog system handles sensitive information or serves as a public-facing interface.
Mitigation strategies should focus on immediate patching of the affected Mblog Blog system to version 3.5.1 or later, which includes proper file validation and upload restrictions. Organizations should implement strict file type validation, reject executable file extensions, and perform content analysis of uploaded files. Network segmentation and access controls should be enforced to limit the potential impact of successful exploitation. Additionally, monitoring for unusual file upload activities and implementing web application firewalls can provide additional layers of protection. Security teams should conduct thorough assessments of the affected systems and consider the potential for post-exploitation activities, including credential harvesting and lateral movement within the network infrastructure. The vulnerability highlights the importance of proper input validation and secure file handling practices as outlined in OWASP Top Ten and NIST Cybersecurity Framework guidelines for web application security.