CVE-2025-50868 in CloudClassroom-PHP-Project
Summary
by MITRE • 08/01/2025
A SQL Injection vulnerability exists in the takeassessment2.php file of CloudClassroom-PHP-Project 1.0. The Q4 POST parameter is not properly sanitized before being used in SQL queries.
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Analysis
by VulDB Data Team • 08/05/2025
The SQL injection vulnerability identified in CVE-2025-50868 represents a critical security flaw within the CloudClassroom-PHP-Project 1.0 platform, specifically affecting the takeassessment2.php component. This vulnerability arises from insufficient input validation and sanitization mechanisms that fail to properly handle user-supplied data before incorporating it into database queries. The Q4 POST parameter serves as the primary attack vector, where malicious actors can manipulate the input to execute unauthorized database operations. Such vulnerabilities fall under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection flaws that occur when untrusted data is directly embedded into SQL command strings without proper sanitization or parameterization.
The technical exploitation of this vulnerability enables attackers to bypass authentication mechanisms, extract sensitive data from the underlying database, modify or delete critical information, and potentially gain elevated privileges within the system. When the Q4 parameter is submitted through the POST request, the application processes this input without proper validation, allowing malicious SQL code to be executed within the database context. This flaw fundamentally compromises the integrity and confidentiality of the system's data storage mechanisms, as the application fails to implement proper input sanitization techniques or prepared statement usage that would normally prevent such injection attacks.
The operational impact of this vulnerability extends beyond simple data compromise, as it creates opportunities for persistent threats and lateral movement within the network infrastructure. Attackers can leverage this weakness to perform unauthorized database enumeration, extract user credentials, access administrative functions, and potentially establish backdoors for continued access. The vulnerability affects the core assessment functionality of the CloudClassroom platform, potentially compromising student records, exam results, and institutional data. According to MITRE ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application and T1071.004 - Application Layer Protocol: DNS, as attackers may use this weakness to establish command and control channels or exfiltrate data through database connections.
Mitigation strategies for CVE-2025-50868 must focus on implementing proper input validation, parameterized queries, and secure coding practices throughout the application stack. The most effective approach involves replacing direct string concatenation with prepared statements or parameterized queries that separate SQL command structure from data content. Additionally, implementing comprehensive input sanitization routines, employing web application firewalls, and conducting regular security code reviews can significantly reduce the risk of exploitation. Organizations should also consider implementing principle of least privilege access controls, database activity monitoring, and regular vulnerability assessments to detect and remediate similar weaknesses. The remediation process requires immediate patching of the takeassessment2.php file to ensure all user inputs are properly validated and sanitized before database interaction, aligning with industry best practices established in OWASP Top Ten and NIST cybersecurity guidelines.