CVE-2026-18927 in Student-Management-System
Summary
by MITRE • 08/05/2026
A vulnerability was determined in imranrisal-dev Student-Management-System 18ea7904c339e0c7b0234724a79c939ce6191def/a8d43a29aaf267e7ca97171d6dbb44057bcd7f8c. This affects the function storeProfileImage of the file student_profile_pic.php of the component Shared Upload Helper. Executing a manipulation of the argument choose_file can lead to unrestricted upload. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability exists within the imranrisal-dev Student-Management-System where the storeProfileImage function in student_profile_pic.php fails to properly validate file uploads through the choose_file parameter. The flaw represents a classic unrestricted file upload vulnerability that allows remote attackers to execute arbitrary code on the target system by uploading malicious files. The Shared Upload Helper component lacks proper input sanitization and file type verification mechanisms, creating an entry point for attackers to bypass security controls and potentially gain unauthorized access to the system.
The technical implementation of this vulnerability stems from inadequate validation of uploaded files within the choose_file argument processing. When users submit profile images through the web interface, the system does not sufficiently verify the file extensions, MIME types, or content signatures before storing the files on the server. This allows attackers to upload files with executable extensions such as .php, .asp, or .jsp that can be executed directly by the web server. The vulnerability operates at the application layer and can be exploited remotely without requiring authentication, making it particularly dangerous for publicly accessible systems.
The operational impact of this vulnerability is severe and multifaceted across multiple attack vectors. According to the ATT&CK framework, this represents a technique that falls under T1505.003 (Web Shell) and T1059.007 (Command and Scripting Interpreter) where attackers can establish persistent access through uploaded malicious files. The rolling release model of this system complicates remediation efforts as there is no clear version tracking to identify which releases contain the fix, leaving users vulnerable during the patching process. Additionally, the lack of vendor response after initial contact creates a security gap that attackers can exploit without fear of immediate remediation.
Security practitioners should implement multiple layers of defense to mitigate this vulnerability. The primary mitigation involves implementing strict file type validation using allowlists rather than blocklists, ensuring only predetermined safe extensions are accepted. Input sanitization must be enforced through proper MIME type checking and content analysis to prevent malicious files from being stored. Network segmentation and web application firewalls should be configured to monitor for suspicious file upload patterns. The system should also implement proper file storage isolation where uploaded files are not directly executable by the web server and are instead processed through secure channels with appropriate access controls. According to CWE guidelines, this vulnerability maps to CWE-434 which specifically addresses unrestricted Upload of executable code, emphasizing the need for comprehensive file validation and secure file handling practices in web applications.
The public disclosure of this exploit increases the risk profile significantly as it provides attackers with a working method to compromise affected systems. The vulnerability's remote execution capability combined with the lack of vendor response creates an urgent security concern that requires immediate attention from system administrators. Organizations using this software should conduct immediate vulnerability assessments and implement temporary workarounds such as disabling file upload functionality until proper patches are available. The absence of version information in the rolling release model makes it particularly challenging to determine which systems are actually vulnerable, highlighting the importance of proactive security measures and regular security audits to identify and remediate such issues before they can be exploited in the wild.