CVE-2025-4881 Overview
A critical SQL injection vulnerability has been identified in itsourcecode Restaurant Management System version 1.0. The vulnerability exists within the /admin/user_save.php file, where insufficient input validation allows attackers to inject malicious SQL statements through the username and name parameters. This flaw enables unauthorized database access and manipulation, potentially compromising the entire application's data integrity and confidentiality.
Critical Impact
Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially gain unauthorized access to the underlying system without authentication.
Affected Products
- Adonesevangelista Restaurant Management System 1.0
- itsourcecode Restaurant Management System 1.0
Discovery Timeline
- 2025-05-18 - CVE-2025-4881 published to NVD
- 2025-05-21 - Last updated in NVD database
Technical Details for CVE-2025-4881
Vulnerability Analysis
This SQL injection vulnerability affects the user management functionality within the Restaurant Management System's administrative interface. The vulnerable endpoint /admin/user_save.php accepts user-supplied input through the username and name parameters without proper sanitization or parameterized queries. When this unsanitized input is concatenated directly into SQL queries, it allows attackers to break out of the intended query structure and execute arbitrary SQL commands.
The exploit has been publicly disclosed, increasing the risk of widespread exploitation against unpatched systems. The network-accessible nature of this vulnerability means attackers can launch attacks remotely without requiring any prior authentication or user interaction.
Root Cause
The root cause of this vulnerability is improper input validation (CWE-89: SQL Injection, CWE-74: Injection) in the user_save.php file. The application fails to sanitize user-supplied data before incorporating it into SQL queries. Instead of using prepared statements or parameterized queries, the code directly concatenates user input into database operations, creating an injection point that attackers can exploit.
Attack Vector
The attack can be launched remotely over the network targeting the /admin/user_save.php endpoint. An attacker can craft malicious input containing SQL metacharacters and inject them through the username or name parameters during user creation or modification operations. The vulnerability requires no authentication and no user interaction, making it particularly dangerous for exposed systems.
The attack typically involves submitting specially crafted payloads through HTTP requests that contain SQL syntax designed to manipulate the underlying database query. Common exploitation techniques include UNION-based injection to extract data, blind SQL injection for inferring database contents, or time-based injection for systems where direct output is not visible.
Detection Methods for CVE-2025-4881
Indicators of Compromise
- Unusual database queries or errors in application logs associated with /admin/user_save.php
- HTTP requests to /admin/user_save.php containing SQL keywords such as UNION, SELECT, DROP, or single quotes in the username or name parameters
- Unexpected database modifications or data exfiltration patterns
- Authentication anomalies or unauthorized administrative access
Detection Strategies
- Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the /admin/user_save.php endpoint
- Configure intrusion detection systems (IDS) to alert on SQL injection signatures in HTTP traffic
- Enable detailed logging for database queries and monitor for anomalous SQL statement patterns
- Deploy application-layer monitoring to track requests containing SQL metacharacters
Monitoring Recommendations
- Monitor access logs for requests to /admin/user_save.php with suspicious parameter values
- Set up alerts for database error messages that indicate failed injection attempts
- Track failed and successful login attempts to the administrative interface
- Review audit logs for unauthorized data access or modifications
How to Mitigate CVE-2025-4881
Immediate Actions Required
- Restrict network access to the Restaurant Management System administrative interface until patches are applied
- Implement Web Application Firewall rules to filter SQL injection attempts targeting /admin/user_save.php
- Review and audit all user accounts for unauthorized access or modifications
- Consider taking the application offline if sensitive data is at risk
Patch Information
No official vendor patch has been identified for this vulnerability. The affected software is available through IT Source Code, and users should monitor for updates. For detailed vulnerability information, refer to the VulDB advisory and the GitHub CVE disclosure.
Workarounds
- Implement input validation at the application level to sanitize username and name parameters
- Deploy a reverse proxy or WAF to filter malicious requests before they reach the application
- Restrict access to the /admin/ directory to trusted IP addresses only
- Use database account permissions to limit the impact of potential SQL injection attacks
# Example: Block access to admin directory via .htaccess
<Directory "/var/www/html/admin">
Order deny,allow
Deny from all
Allow from 192.168.1.0/24
</Directory>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
