CVE-2019-25531 Overview
Netartmedia Deals Portal contains an SQL injection vulnerability in the Email parameter of loginaction.php that allows unauthenticated attackers to manipulate database queries. Attackers can submit crafted SQL payloads through POST requests to extract sensitive information or bypass authentication mechanisms. This vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).
Critical Impact
Unauthenticated attackers can exploit this SQL injection flaw to extract sensitive database contents, bypass authentication, and potentially gain unauthorized access to the application and underlying systems.
Affected Products
- Netartmedia Deals Portal
Discovery Timeline
- 2026-03-12 - CVE CVE-2019-25531 published to NVD
- 2026-03-12 - Last updated in NVD database
Technical Details for CVE-2019-25531
Vulnerability Analysis
This SQL injection vulnerability exists in the loginaction.php file of Netartmedia Deals Portal. The application fails to properly sanitize or parameterize user input received through the Email parameter in POST requests. When processing login attempts, the application directly incorporates the Email parameter value into SQL queries without adequate input validation or prepared statements.
The vulnerability allows remote attackers to inject arbitrary SQL commands that are then executed against the backend database with the privileges of the application's database user. This can lead to unauthorized data access, authentication bypass, and potential compromise of the entire database.
Root Cause
The root cause of this vulnerability is improper input validation and the use of unsanitized user input in SQL query construction. The loginaction.php script directly concatenates the Email parameter value into SQL statements rather than using parameterized queries or prepared statements. This lack of input sanitization allows malicious SQL syntax to be interpreted and executed by the database engine.
Attack Vector
The attack is network-based and requires no authentication or user interaction, making it highly accessible to attackers. An attacker can exploit this vulnerability by crafting a malicious HTTP POST request to loginaction.php containing SQL injection payloads in the Email parameter. The injected SQL code is then executed against the database, potentially allowing the attacker to:
- Extract sensitive data from the database including user credentials
- Bypass authentication mechanisms to gain administrative access
- Modify or delete database records
- Potentially escalate to remote code execution depending on database configuration
Technical details and proof-of-concept information can be found in the Exploit-DB #46582 entry and the VulnCheck Advisory.
Detection Methods for CVE-2019-25531
Indicators of Compromise
- Anomalous POST requests to loginaction.php containing SQL syntax such as single quotes, UNION SELECT statements, or comment sequences (-- or #)
- Database error messages appearing in HTTP responses indicating SQL syntax errors
- Unexpected database queries in logs showing data extraction patterns or authentication bypass attempts
- Multiple failed login attempts followed by successful authentication without valid credentials
Detection Strategies
- Deploy web application firewalls (WAF) with SQL injection detection rules targeting the loginaction.php endpoint
- Implement application-level logging to capture and analyze all POST parameters submitted to authentication endpoints
- Monitor database query logs for suspicious patterns including UNION-based injection or time-based blind injection techniques
- Configure intrusion detection systems (IDS) to alert on common SQL injection signatures in HTTP traffic
Monitoring Recommendations
- Enable verbose logging on the web server to capture full request bodies for POST requests to sensitive endpoints
- Set up real-time alerting for database errors that may indicate injection attempts
- Monitor for unusual database query execution times that could indicate time-based blind SQL injection
- Track authentication success rates and alert on anomalous patterns suggesting bypass attempts
How to Mitigate CVE-2019-25531
Immediate Actions Required
- Restrict access to loginaction.php using IP-based access controls or authentication requirements where possible
- Deploy a web application firewall (WAF) with SQL injection protection rules
- Implement input validation to reject Email parameter values containing SQL metacharacters
- Review and audit all authentication-related code for similar injection vulnerabilities
Patch Information
No official vendor patch information is currently available. Organizations using Netartmedia Deals Portal should contact the vendor directly for security updates or consider implementing the workarounds described below. Refer to the VulnCheck Advisory for additional guidance.
Workarounds
- Implement parameterized queries or prepared statements in loginaction.php to prevent SQL injection
- Add server-side input validation to sanitize the Email parameter before use in database queries
- Deploy a reverse proxy or WAF configured to filter malicious SQL injection patterns
- Consider temporarily disabling the vulnerable login functionality until a proper fix can be implemented
- Restrict database user privileges to minimum required permissions to limit potential impact
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
