CVE-2019-25513 Overview
Jettweb PHP Hazir Haber Sitesi Scripti V3 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the q parameter. Attackers can send GET requests to datagetir.php with malicious q values using time-based blind SQL injection techniques to extract sensitive database information or bypass authentication.
Critical Impact
Unauthenticated attackers can exploit this SQL injection vulnerability to extract sensitive database information, bypass authentication mechanisms, and potentially gain unauthorized access to the underlying database system.
Affected Products
- Jettweb PHP Hazir Haber Sitesi Scripti V3
Discovery Timeline
- 2026-03-12 - CVE CVE-2019-25513 published to NVD
- 2026-03-12 - Last updated in NVD database
Technical Details for CVE-2019-25513
Vulnerability Analysis
This vulnerability is classified as CWE-89 (SQL Injection), a critical web application security flaw where user-supplied input is incorporated directly into SQL queries without proper sanitization or parameterization. The vulnerable endpoint datagetir.php accepts a q parameter via GET requests and fails to properly validate or escape the input before constructing database queries. This allows attackers to inject arbitrary SQL syntax that gets executed by the database engine with the same privileges as the web application.
The time-based blind SQL injection technique referenced in this vulnerability indicates that direct error messages may not be visible to attackers. Instead, exploitation relies on measuring response time differences when injecting SQL commands that cause conditional delays (such as SLEEP() or WAITFOR DELAY statements). This technique allows attackers to systematically extract database contents character by character, despite the lack of direct output.
Root Cause
The root cause of this vulnerability is improper input validation and the absence of parameterized queries (prepared statements) in the PHP code handling the q parameter within datagetir.php. User-supplied input from the GET request is directly concatenated into SQL query strings rather than being bound as parameters, allowing malicious SQL syntax to be interpreted as part of the query structure instead of data.
Attack Vector
This vulnerability is exploitable over the network without authentication. An attacker can craft malicious HTTP GET requests targeting the datagetir.php endpoint with specially crafted q parameter values containing SQL injection payloads. The attack does not require any user interaction or special privileges. Time-based blind SQL injection techniques involve injecting conditional statements that trigger database delays, allowing attackers to infer boolean responses about database structure and contents based on response timing.
For example, an attacker might inject payloads that cause the database to sleep for a specified duration when a condition is true, revealing information about table names, column names, and actual data values through systematic probing. Successful exploitation can lead to complete database compromise, including extraction of user credentials, personal information, and other sensitive data stored in the database.
Detection Methods for CVE-2019-25513
Indicators of Compromise
- Abnormal HTTP GET requests to datagetir.php containing SQL keywords such as SLEEP, WAITFOR, UNION, SELECT, or comment syntax (--, /*)
- Unusually long response times from the web application indicating time-based SQL injection attempts
- Access logs showing repeated requests to datagetir.php with incrementing or pattern-based q parameter values
- Database logs showing unusual query patterns or syntax errors from malformed injection attempts
Detection Strategies
- Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in the q parameter
- Implement application-level logging to capture all requests to datagetir.php and flag suspicious input patterns
- Configure database query logging to identify anomalous query structures or execution patterns
- Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns
Monitoring Recommendations
- Monitor HTTP access logs for requests to datagetir.php containing SQL injection payload signatures
- Set up alerts for abnormal response time patterns that may indicate time-based SQL injection probing
- Review database server performance metrics for unexpected CPU or query processing spikes
- Implement real-time security monitoring for web application endpoints handling user input
How to Mitigate CVE-2019-25513
Immediate Actions Required
- Remove or disable the vulnerable datagetir.php script if not essential to application functionality
- Implement input validation to restrict the q parameter to expected alphanumeric values only
- Deploy a Web Application Firewall (WAF) with SQL injection protection rules as an interim measure
- Review access logs for evidence of exploitation attempts and investigate any suspicious activity
Patch Information
No official vendor patch information is currently available for this vulnerability. Organizations using Jettweb PHP Hazir Haber Sitesi Scripti V3 should contact the vendor directly for remediation guidance. In the absence of an official patch, implementing the workarounds below is strongly recommended. Technical details about the vulnerability are available in the Exploit-DB #46599 entry and the VulnCheck SQL Injection Advisory.
Workarounds
- Replace direct SQL query construction with parameterized queries (prepared statements) in the affected PHP code
- Implement strict input validation using allowlists to ensure the q parameter contains only expected characters
- Apply the principle of least privilege to the database user account used by the web application
- Consider migrating to a supported and actively maintained CMS solution if the vendor does not provide security updates
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
