CVE-2025-4837 Overview
A critical SQL injection vulnerability has been identified in Projectworlds Student Project Allocation System version 1.0. The vulnerability exists within the /make_group_sql.php file, where the mem1, mem2, and mem3 parameters are not properly sanitized before being used in SQL queries. This allows remote attackers to inject malicious SQL statements, potentially leading to unauthorized data access, modification, or deletion of database contents.
Critical Impact
Remote attackers can exploit this SQL injection vulnerability without authentication to extract sensitive student and project data, modify database records, or potentially compromise the entire application database.
Affected Products
- Projectworlds Student Project Allocation System 1.0
Discovery Timeline
- 2025-05-17 - CVE-2025-4837 published to NVD
- 2025-05-28 - Last updated in NVD database
Technical Details for CVE-2025-4837
Vulnerability Analysis
This vulnerability is a classic SQL injection flaw (CWE-89) that also falls under the broader category of injection vulnerabilities (CWE-74). The /make_group_sql.php endpoint accepts user input through the mem1, mem2, and mem3 parameters, which are intended to specify group member identifiers during the project allocation process.
The application fails to implement proper input validation and parameterized queries, allowing attackers to craft malicious input that breaks out of the intended SQL query context. Since the vulnerability is network-accessible and requires no authentication, it presents a significant risk to deployments of this student management application.
The exploit has been publicly disclosed, increasing the likelihood of exploitation attempts against vulnerable installations. Organizations using this software should treat remediation as a high priority.
Root Cause
The root cause of this vulnerability is improper input validation and the use of unsanitized user input directly in SQL query construction. The mem1, mem2, and mem3 parameters are concatenated into SQL statements without proper escaping, sanitization, or the use of prepared statements with parameterized queries.
This is a fundamental secure coding violation where user-controlled data is trusted and incorporated directly into database queries, allowing attackers to manipulate the query logic.
Attack Vector
The attack can be initiated remotely over the network without requiring authentication. An attacker can craft HTTP requests to the /make_group_sql.php endpoint with malicious payloads in the mem1, mem2, or mem3 parameters.
By injecting SQL syntax such as single quotes, UNION statements, or boolean-based payloads, attackers can:
- Extract sensitive data from the database including student records and project information
- Modify or delete existing database entries
- Potentially escalate to execute administrative database operations
- In some configurations, achieve command execution on the underlying server
Technical details and proof-of-concept information have been documented in the GitHub Issue #6 Discussion and GitHub Issue #7 Discussion.
Detection Methods for CVE-2025-4837
Indicators of Compromise
- HTTP requests to /make_group_sql.php containing SQL metacharacters such as single quotes, double quotes, semicolons, or SQL keywords like UNION, SELECT, INSERT, UPDATE, DELETE
- Unusual or malformed values in the mem1, mem2, or mem3 request parameters
- Database error messages appearing in application logs or responses indicating query syntax errors
- Unexpected database queries or data extraction patterns in database audit logs
Detection Strategies
- Implement web application firewall (WAF) rules to detect SQL injection patterns in requests to /make_group_sql.php
- Monitor HTTP access logs for requests containing encoded SQL injection payloads targeting the vulnerable parameters
- Deploy database activity monitoring to detect anomalous query patterns or data exfiltration attempts
- Configure intrusion detection systems with signatures for common SQL injection attack strings
Monitoring Recommendations
- Enable detailed logging on the web application server to capture all requests to the vulnerable endpoint
- Set up alerts for any database errors related to malformed SQL queries
- Monitor for unusual data access patterns or bulk data retrieval that may indicate successful exploitation
- Review authentication and session logs for any signs of privilege escalation following potential SQL injection attacks
How to Mitigate CVE-2025-4837
Immediate Actions Required
- Restrict network access to the Student Project Allocation System to trusted users and networks only
- Implement a web application firewall (WAF) with SQL injection protection rules
- If possible, disable or remove the /make_group_sql.php file until a patch is available
- Review database access logs for signs of prior exploitation
Patch Information
No official vendor patch has been identified at this time. Organizations should monitor the vendor's channels and resources such as VulDB #309303 Details for updates on remediation guidance. Consider engaging with the vendor directly to request a security update.
Workarounds
- Deploy a web application firewall (WAF) configured to block SQL injection attempts on the affected endpoint
- Implement input validation at the application or reverse proxy level to sanitize the mem1, mem2, and mem3 parameters before they reach the application
- Restrict database user privileges to minimize the impact of successful SQL injection attacks
- Consider taking the application offline or restricting access until proper remediation can be implemented
- If source code access is available, manually implement prepared statements and parameterized queries in the /make_group_sql.php file
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
