CVE-2025-3973 in COVID19 Testing Management System
Summary
by MITRE • 04/27/2025
A vulnerability, which was classified as critical, was found in PHPGurukul COVID19 Testing Management System 1.0. This affects an unknown part of the file /check_availability.php. The manipulation of the argument mobnumber leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.
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Analysis
by VulDB Data Team • 04/27/2025
The CVE-2025-3973 vulnerability represents a critical sql injection flaw within the PHPGurukul COVID19 Testing Management System version 1.0, specifically targeting the /check_availability.php component. This vulnerability arises from insufficient input validation and sanitization of the mobnumber parameter, which serves as the primary attack vector for malicious actors seeking to exploit the system's database interface. The flaw exists in the application's handling of user-supplied mobile number data, where the parameter is directly incorporated into sql query construction without proper escaping or parameterization mechanisms. The vulnerability's classification as critical stems from its potential for remote exploitation, allowing attackers to execute arbitrary sql commands against the underlying database without requiring authentication or physical access to the system infrastructure.
The technical exploitation of this vulnerability occurs through manipulation of the mobnumber parameter within the /check_availability.php file, where the application fails to properly validate or sanitize user input before incorporating it into database queries. This allows threat actors to inject malicious sql payloads that can manipulate the database structure, extract sensitive information, modify or delete data, or even escalate privileges within the database environment. The remote nature of the attack means that exploitation can occur from any location with internet access, making the vulnerability particularly dangerous for systems deployed in production environments where network exposure is inevitable. The disclosure of the exploit to the public community significantly increases the risk of widespread exploitation, as malicious actors can readily implement the attack without requiring advanced technical skills or specialized tools beyond basic sql injection techniques.
The operational impact of CVE-2025-3973 extends beyond simple data compromise, potentially enabling complete system takeover through database-level attacks. Attackers could leverage this vulnerability to extract patient records, testing results, and other sensitive health information, violating privacy regulations and potentially exposing individuals to identity theft or other malicious activities. The vulnerability may also allow attackers to modify system configurations, inject malicious code, or establish persistent backdoors within the application environment. Given that this affects a covid19 testing management system, the potential for data manipulation or exposure of sensitive health information creates additional regulatory and compliance risks under healthcare data protection frameworks. The affected system architecture likely lacks proper input validation controls and sql injection prevention mechanisms, making it vulnerable to various sql injection attack patterns including error-based, union-based, or time-based injection techniques.
Mitigation strategies for CVE-2025-3973 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities in the system. The primary fix involves implementing proper parameterized queries or prepared statements for all database interactions, particularly for the mobnumber parameter in the /check_availability.php file. Input validation should be strengthened to reject malformed mobile number formats and prevent injection attempts through proper sanitization routines. Network-level protections such as web application firewalls and intrusion detection systems can provide additional monitoring and blocking capabilities for sql injection attempts. Regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities throughout the application codebase. The vulnerability aligns with CWE-89 sql injection weakness category and represents a common attack pattern documented in the mitre ATT&CK framework under the credential access and defense evasion techniques. Organizations should also consider implementing database activity monitoring and regular vulnerability scanning to detect and respond to exploitation attempts. The disclosed exploit status necessitates immediate patching or mitigation implementation, as the vulnerability has already been weaponized and poses an active threat to affected systems.