CVE-2026-3153 Overview
A SQL injection vulnerability has been discovered in itsourcecode Document Management System version 1.0. The vulnerability exists in the /register.php file where improper handling of the Username argument allows attackers to inject malicious SQL queries. This weakness enables remote attackers to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion.
Critical Impact
Remote attackers can exploit this SQL injection vulnerability without authentication to compromise database integrity and confidentiality through the registration endpoint.
Affected Products
- Admerc Document Management System 1.0
- itsourcecode Document Management System 1.0
Discovery Timeline
- 2026-02-25 - CVE-2026-3153 published to NVD
- 2026-02-25 - Last updated in NVD database
Technical Details for CVE-2026-3153
Vulnerability Analysis
This SQL injection vulnerability (CWE-89) affects the registration functionality of the Document Management System. The vulnerability stems from improper neutralization of special elements used in SQL commands, allowing attackers to inject arbitrary SQL code through the Username parameter in /register.php. The exploit has been publicly disclosed and can be launched remotely without requiring any authentication or user interaction.
The vulnerability falls under the broader category of injection flaws (CWE-74), where user-controlled input is not properly sanitized before being incorporated into database queries. An attacker can leverage this weakness to extract sensitive information from the database, modify or delete records, or potentially escalate their access within the application.
Root Cause
The root cause of this vulnerability is the failure to properly validate and sanitize user input in the Username parameter before incorporating it into SQL queries. The application directly concatenates or interpolates user-supplied data into SQL statements without using parameterized queries or prepared statements, allowing malicious SQL code to be executed by the database engine.
Attack Vector
The attack can be executed remotely over the network. An attacker crafts a malicious HTTP request to the /register.php endpoint, embedding SQL injection payloads within the Username parameter. Since the vulnerability requires no authentication and no user interaction, any remote attacker with network access to the application can attempt exploitation.
The attack flow typically involves:
- Identifying the vulnerable registration endpoint at /register.php
- Crafting SQL injection payloads within the Username field
- Submitting the malicious request to extract data or manipulate the database
- Analyzing the application response to confirm successful injection
For detailed technical information about this vulnerability, refer to the GitHub CVE Issue Discussion and VulDB #347661.
Detection Methods for CVE-2026-3153
Indicators of Compromise
- Unusual SQL error messages in application logs originating from /register.php
- Database queries containing SQL metacharacters (single quotes, double dashes, semicolons) in username fields
- Abnormal registration attempts with long or malformed username values
- Unexpected database access patterns or data exfiltration attempts
Detection Strategies
- Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in POST requests to /register.php
- Implement application-level logging to capture all registration attempts with detailed parameter values
- Configure database audit logging to identify suspicious query patterns or failed authentication attempts
- Use intrusion detection systems (IDS) with SQL injection signature rules
Monitoring Recommendations
- Monitor HTTP traffic to /register.php for SQL injection indicators such as ' OR '1'='1, UNION SELECT, or -- comment sequences
- Set up alerts for database errors related to malformed queries from the web application
- Implement rate limiting on the registration endpoint to slow automated exploitation attempts
- Review access logs for repeated failed registration attempts from single IP addresses
How to Mitigate CVE-2026-3153
Immediate Actions Required
- Restrict network access to the Document Management System to trusted networks only until patching is possible
- Implement Web Application Firewall rules to block common SQL injection patterns on the /register.php endpoint
- Disable or restrict the registration functionality if not business-critical
- Monitor database and application logs for signs of exploitation attempts
Patch Information
No official vendor patch has been announced at the time of publication. Organizations should monitor the IT Source Code website for security updates. As this is an open-source project, consider reviewing the source code and implementing fixes directly if patching is not available.
For additional vulnerability details and community discussion, refer to:
Workarounds
- Implement input validation on the Username parameter to allow only alphanumeric characters and specific safe symbols
- Use parameterized queries or prepared statements when handling user input in database operations
- Deploy a reverse proxy or WAF with SQL injection filtering capabilities
- Consider implementing a CAPTCHA on the registration form to reduce automated attack attempts
- Limit database user privileges for the web application to minimize impact of successful exploitation
# Example WAF rule configuration (ModSecurity)
# Block SQL injection patterns in registration requests
SecRule REQUEST_URI "@contains /register.php" \
"id:100001,phase:2,deny,status:403,\
chain"
SecRule ARGS:Username "@detectSQLi" \
"log,msg:'SQL Injection attempt detected in Username field'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
