CVE-2025-10664 Overview
A SQL Injection vulnerability has been identified in PHPGurukul Small CRM version 4.0. The vulnerability exists within the /create-ticket.php file, where improper handling of the subject argument allows attackers to inject malicious SQL commands. This flaw can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive database information, data manipulation, or system compromise.
Critical Impact
Remote attackers can exploit this SQL Injection vulnerability to extract, modify, or delete data from the underlying database, potentially compromising all customer relationship management data stored in the application.
Affected Products
- PHPGurukul Small CRM 4.0
- Applications using phpgurukul:small_crm component
Discovery Timeline
- September 18, 2025 - CVE-2025-10664 published to NVD
- September 19, 2025 - Last updated in NVD database
Technical Details for CVE-2025-10664
Vulnerability Analysis
This SQL Injection vulnerability affects the ticket creation functionality in PHPGurukul Small CRM 4.0. The application fails to properly sanitize user-supplied input in the subject parameter before incorporating it into SQL queries. This lack of input validation creates a classic SQL Injection attack surface that can be exploited remotely over the network.
The vulnerability requires no authentication or user interaction to exploit, making it particularly dangerous for exposed instances of the CRM application. Successful exploitation could allow attackers to bypass authentication mechanisms, extract sensitive customer data, modify records, or potentially achieve further system compromise depending on database permissions.
Root Cause
The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries (prepared statements) in the /create-ticket.php file. The application directly concatenates user-controlled input from the subject argument into SQL queries without sanitization or escaping, violating secure coding practices for database interactions. This represents a CWE-89 (SQL Injection) weakness, which falls under the broader category of CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Attack Vector
The attack can be launched remotely over the network against vulnerable PHPGurukul Small CRM installations. An attacker would craft a malicious HTTP request to the /create-ticket.php endpoint containing SQL injection payloads in the subject parameter. The exploit has been publicly disclosed, increasing the risk of exploitation in the wild.
The vulnerability allows manipulation through standard SQL injection techniques. Attackers can leverage this flaw to:
- Extract database contents using UNION-based or error-based injection
- Bypass authentication controls
- Modify or delete existing records
- Potentially execute operating system commands if database permissions allow
Technical details regarding this vulnerability can be found in the GitHub Issue Tracker and the VulDB entry #324785.
Detection Methods for CVE-2025-10664
Indicators of Compromise
- Unusual SQL syntax or special characters in web server logs for /create-ticket.php requests
- Unexpected database queries containing UNION SELECT, OR 1=1, or other SQL injection patterns
- Anomalous access to database tables containing sensitive CRM data
- Error messages in application logs indicating SQL syntax errors from malformed queries
Detection Strategies
- Monitor HTTP request logs for suspicious payloads in the subject parameter targeting /create-ticket.php
- Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns
- Configure database auditing to alert on unusual query patterns or data extraction attempts
- Deploy application security monitoring to detect exploitation attempts in real-time
Monitoring Recommendations
- Enable detailed logging for the PHPGurukul Small CRM application and associated database
- Configure alerts for high-volume or failed authentication attempts following ticket creation requests
- Monitor for data exfiltration indicators such as large result sets or unusual database read patterns
- Review access logs regularly for requests containing encoded or obfuscated SQL injection payloads
How to Mitigate CVE-2025-10664
Immediate Actions Required
- Restrict network access to PHPGurukul Small CRM instances to trusted IP addresses only
- Implement a Web Application Firewall (WAF) with SQL injection detection rules in front of the application
- Review database user permissions and apply the principle of least privilege
- Monitor the application for exploitation attempts while awaiting a vendor patch
- Consider temporarily disabling the ticket creation functionality if not business-critical
Patch Information
At the time of publication, no official patch has been released by the vendor for this vulnerability. Organizations should monitor the PHP Gurukul website for security updates. Until a patch becomes available, implementing the recommended workarounds and detection strategies is strongly advised.
For additional vulnerability intelligence, refer to:
Workarounds
- Deploy a Web Application Firewall configured to block SQL injection patterns in HTTP parameters
- Implement custom input validation on the web server to sanitize the subject parameter before it reaches the application
- Restrict database user permissions for the CRM application to read-only where possible
- Isolate the CRM application in a network segment with restricted access
- Consider using a reverse proxy with request filtering capabilities to inspect and sanitize incoming traffic
# Example: ModSecurity WAF rule to detect SQL injection in the subject parameter
SecRule ARGS:subject "@detectSQLi" \
"id:100001,\
phase:2,\
block,\
msg:'SQL Injection attempt detected in subject parameter',\
logdata:'Matched Data: %{MATCHED_VAR} found within %{MATCHED_VAR_NAME}',\
severity:'CRITICAL'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
