CVE-2024-33752 in Pro
Summary
by MITRE • 05/06/2024
An arbitrary file upload vulnerability exists in emlog pro 2.3.0 and pro 2.3.2 at admin/views/plugin.php that could be exploited by a remote attacker to submit a special request to upload a malicious file to execute arbitrary code.
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Analysis
by VulDB Data Team • 06/11/2025
The vulnerability identified as CVE-2024-33752 represents a critical arbitrary file upload flaw in emlog pro version 2.3.0 and 2.3.2, specifically within the admin/views/plugin.php component. This weakness enables remote attackers to bypass normal file upload restrictions and execute malicious code on the target system. The vulnerability stems from insufficient input validation and access control measures that fail to properly verify file types and content during the upload process. Attackers can exploit this by crafting specially designed requests that circumvent the intended security controls, potentially leading to complete system compromise.
The technical implementation of this vulnerability involves the absence of proper file type validation and content inspection mechanisms within the plugin.php file. When users attempt to upload files through the administrative interface, the application fails to adequately sanitize the uploaded content, allowing attackers to submit files with dangerous extensions or payloads. This flaw directly aligns with CWE-434 which catalogs improper restriction of file uploads, a well-known weakness that has been exploited in numerous web application attacks. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous as it can be triggered through standard web browser interactions.
The operational impact of this vulnerability extends beyond simple code execution to encompass full system compromise and potential data breaches. Successful exploitation could enable attackers to install backdoors, modify existing files, create new administrative accounts, or exfiltrate sensitive information from the affected system. The attack surface is particularly concerning given that emlog pro is a widely used content management system for blogging platforms, meaning that compromised installations could affect numerous websites simultaneously. From an adversary perspective, this vulnerability provides a persistent entry point that aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications, and T1059 for executing code through web shells or other malicious payloads.
Mitigation strategies for CVE-2024-33752 should prioritize immediate patching of affected emlog pro versions to address the core validation flaws in the plugin.php component. Organizations should implement additional security controls including strict file type validation, content inspection mechanisms, and proper access controls for administrative upload functions. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense against exploitation attempts. Security teams should also conduct comprehensive audits of all uploaded file handling mechanisms within the application and establish monitoring procedures to detect unauthorized upload activities. Regular security assessments and vulnerability scanning should be implemented to identify similar weaknesses in other components of the web application infrastructure, ensuring a holistic approach to protecting against similar arbitrary file upload vulnerabilities.