CVE-2019-25517: Jettweb PHP Script SQL Injection Flaw

CVE-2019-25517 Overview

CVE-2019-25517 is a SQL injection vulnerability affecting Jettweb PHP Hazir Haber Sitesi Scripti V1, a PHP-based news website script. The vulnerability exists in the haberarsiv.php file and allows unauthenticated attackers to manipulate database queries by injecting malicious SQL code through the cid parameter. This is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Critical Impact

Unauthenticated attackers can exploit this SQL injection vulnerability to extract sensitive database information, bypass authentication, or modify database contents through UNION-based injection techniques.

Affected Products

• Jettweb PHP Hazir Haber Sitesi Scripti V1

Discovery Timeline

• 2026-03-12 - CVE-2019-25517 published to NVD
• 2026-03-12 - Last updated in NVD database

Technical Details for CVE-2019-25517

Vulnerability Analysis

This SQL injection vulnerability stems from inadequate input validation in the haberarsiv.php script. The application fails to properly sanitize user-supplied input passed through the cid parameter before incorporating it into database queries. This allows attackers to inject arbitrary SQL commands that the database engine will execute with the same privileges as the web application's database connection.

The vulnerability is network-accessible, requiring no authentication or user interaction to exploit. Attackers can leverage UNION-based SQL injection techniques to extract data from other database tables, including user credentials, configuration settings, and other sensitive information stored in the database.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the haberarsiv.php file. User-controlled input from the cid parameter is directly concatenated into SQL query strings without proper sanitization or escaping, allowing attackers to break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack is conducted over the network by sending crafted HTTP requests to the haberarsiv.php endpoint. Attackers manipulate the cid parameter to include SQL injection payloads. The UNION-based injection technique allows attackers to append additional SELECT statements to the original query, enabling data exfiltration from arbitrary database tables. The exploitation does not require any prior authentication or specialized privileges, making this vulnerability particularly dangerous for exposed installations.

For technical details on exploitation techniques, refer to the Exploit-DB #46597 entry and the VulnCheck Advisory.

Detection Methods for CVE-2019-25517

Indicators of Compromise

• Unusual or malformed requests to haberarsiv.php containing SQL keywords such as UNION, SELECT, FROM, or comment sequences (--, /*)
• Error messages in application logs indicating SQL syntax errors or unexpected query results
• Database logs showing anomalous queries or unauthorized data access patterns
• Increased database load or unusual query execution times

Detection Strategies

• Deploy a Web Application Firewall (WAF) with SQL injection detection rules targeting the cid parameter
• Implement application-level logging to capture all requests to haberarsiv.php with parameter values
• Use intrusion detection systems (IDS) with signatures for common SQL injection patterns
• Monitor for authentication bypass attempts or unauthorized access to admin functionality

Monitoring Recommendations

• Enable detailed logging for all database queries executed by the application
• Set up alerts for requests containing SQL injection keywords in URL parameters
• Monitor for unusual patterns in data exfiltration such as large response sizes from the vulnerable endpoint
• Review web server access logs regularly for suspicious request patterns targeting haberarsiv.php

How to Mitigate CVE-2019-25517

Immediate Actions Required

• Immediately restrict access to haberarsiv.php if not essential for operations
• Deploy a WAF rule to block requests containing SQL injection patterns in the cid parameter
• Consider taking the application offline until a proper fix can be implemented
• Audit database access logs for evidence of prior exploitation

Patch Information

No official vendor patch information is available for this vulnerability. Administrators should implement manual remediation by modifying the source code to use prepared statements or parameterized queries for all database operations involving user input. For additional technical guidance, consult the VulnCheck Advisory.

Workarounds

• Implement input validation to restrict the cid parameter to numeric values only
• Use prepared statements with bound parameters for all SQL queries
• Deploy a web application firewall to filter malicious requests before they reach the application
• Consider migrating to an actively maintained CMS with a stronger security track record

# Example Apache .htaccess rule to block suspicious cid parameter values
RewriteEngine On
RewriteCond %{QUERY_STRING} cid=.*['\"\-\;\*] [NC]
RewriteRule ^haberarsiv\.php$ - [F,L]