CVE-2026-14777 in Onlne Examination & Learning Management System
Summary
by MITRE • 07/06/2026
A weakness has been identified in SourceCodester Onlne Examination & Learning Management System 1.0. Affected by this issue is some unknown functionality of the file /announcements.php. Executing a manipulation can lead to unrestricted upload. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The name of the affected product appears to have a typo in it.
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Analysis
by VulDB Data Team • 07/06/2026
This vulnerability resides within the SourceCodester Online Examination & Learning Management System version 1.0, specifically targeting the announcements.php file which represents a critical component for content management within the platform. The weakness manifests as an unrestricted file upload vulnerability that allows attackers to bypass normal file validation mechanisms and execute malicious code on the target system. This type of vulnerability falls under CWE-434 which categorizes insecure file uploads as a significant security risk. The vulnerability's impact is amplified by the fact that it can be exploited remotely without requiring any local access or authentication, making it particularly dangerous for web applications. The presence of a typo in the product name suggests potential negligence in development practices and may indicate broader quality assurance issues within the software ecosystem.
The technical exploitation occurs through manipulation of the announcements.php file which likely handles user-generated content submissions without proper input validation or file type restrictions. Attackers can upload malicious files such as php shells, webshells, or other executable code that gets processed by the web server and subsequently executed with the privileges of the web application. This creates a persistent backdoor for attackers to maintain access, escalate privileges, and potentially compromise the entire underlying system. The vulnerability's remote exploitability means that any authenticated user or even unauthenticated attacker can leverage this weakness depending on the specific implementation details. The availability of public exploits further increases the risk as it eliminates the need for advanced technical skills to carry out attacks.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and potential data breaches. An attacker who successfully exploits this vulnerability could gain full control over the web server, allowing them to access sensitive user information, examination data, learning materials, and potentially other systems within the network that the application might communicate with. This represents a critical security failure in an educational management system that likely contains confidential student records, exam results, and administrative information. The vulnerability creates persistent access points that can be used for ongoing surveillance, data exfiltration, and lateral movement within the network infrastructure.
Mitigation strategies should focus on implementing robust input validation and file type restrictions to prevent unauthorized file uploads while maintaining legitimate functionality of the announcements feature. All file uploads must undergo strict content verification including MIME type checking, file extension validation, and virus scanning before being processed by the server. The application should enforce proper access controls and authentication mechanisms to limit who can submit content to announcement features. Additionally, implementing secure file storage practices such as storing uploaded files outside the web root directory and using random naming conventions for uploaded files can significantly reduce exploitation success rates. Regular security audits, penetration testing, and keeping the application updated with the latest security patches should be implemented as part of comprehensive security management practices. Organizations should also consider implementing network monitoring and intrusion detection systems to identify suspicious file upload activities and potential exploitation attempts. The vulnerability's classification under ATT&CK technique T1505.003 (Server-side Include) and CWE-434 demonstrates the need for layered defense mechanisms including application firewalls, web application firewalls, and proper security configuration practices to prevent exploitation of such critical weaknesses in educational management systems.