CVE-2025-11349: Campcodes Visitor Management SQLi Flaw

CVE-2025-11349 Overview

A SQL injection vulnerability has been identified in Campcodes Online Apartment Visitor Management System version 1.0. The vulnerability exists in the /search-visitor.php file, where improper handling of the searchdata parameter allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially enabling unauthorized access to sensitive database information, data manipulation, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive visitor information, modify database records, or potentially gain further access to the underlying system through database-level attacks.

Affected Products

• Campcodes Online Apartment Visitor Management System 1.0
• Web applications using the vulnerable /search-visitor.php endpoint
• Deployments with exposed visitor search functionality

Discovery Timeline

• October 7, 2025 - CVE-2025-11349 published to NVD
• October 9, 2025 - Last updated in NVD database

Technical Details for CVE-2025-11349

Vulnerability Analysis

This SQL injection vulnerability arises from insufficient input validation in the visitor search functionality. The /search-visitor.php file accepts user-supplied data through the searchdata parameter and incorporates it directly into SQL queries without proper sanitization or parameterization. This allows attackers to manipulate the SQL query structure by injecting malicious payloads through the search input field.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), indicating that special characters and SQL syntax elements are not properly escaped before being used in database queries. The attack can be initiated remotely over the network without requiring any authentication or user interaction, making it accessible to any attacker who can reach the vulnerable endpoint.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries in the search-visitor.php file. The searchdata parameter is directly concatenated into SQL statements without escaping special characters or using prepared statements. This programming practice allows SQL metacharacters to break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack vector is network-based, requiring no privileges or user interaction. An attacker can craft malicious HTTP requests to the /search-visitor.php endpoint with specially crafted searchdata parameter values containing SQL injection payloads. Common attack techniques include UNION-based injection to extract data from other tables, boolean-based blind injection to enumerate database contents character by character, and time-based blind injection when direct output is not visible. The exploit has been publicly disclosed, increasing the risk of active exploitation.

Technical details regarding the exploitation methodology can be found in the GitHub CVE Issue Discussion and the VulDB entry #327234.

Detection Methods for CVE-2025-11349

Indicators of Compromise

• Unusual or malformed HTTP requests to /search-visitor.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements
• Database error messages in application logs indicating SQL syntax errors or unexpected query results
• Anomalous database queries in database server logs, particularly those containing UNION SELECT, OR 1=1, or comment sequences
• Unexpected data access patterns or bulk data extraction from visitor-related database tables

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the searchdata parameter
• Implement application-level logging to capture all inputs to the /search-visitor.php endpoint for forensic analysis
• Configure database activity monitoring to alert on unusual query patterns or access to sensitive tables
• Use intrusion detection systems with signatures for common SQL injection attack payloads

Monitoring Recommendations

• Enable detailed access logging for all requests to the visitor management system, particularly the search functionality
• Monitor database server logs for failed authentication attempts, syntax errors, and unusual query execution times
• Set up alerts for HTTP requests containing common SQL injection strings targeting the application
• Review application logs regularly for evidence of exploitation attempts or successful data exfiltration

How to Mitigate CVE-2025-11349

Immediate Actions Required

• Restrict network access to the Online Apartment Visitor Management System to trusted IP addresses only
• Implement a Web Application Firewall with SQL injection protection rules as an interim measure
• Disable or remove the /search-visitor.php functionality if not critical to operations
• Review database permissions to ensure the application account has minimal required privileges
• Back up the database and audit for any signs of unauthorized access or data modification

Patch Information

No official vendor patch has been identified at this time. Organizations using Campcodes Online Apartment Visitor Management System should contact the vendor through the CampCodes website to inquire about security updates. In the absence of an official patch, implementing the workarounds below is strongly recommended to reduce exposure to this vulnerability.

Workarounds

• Implement input validation on the searchdata parameter to allow only alphanumeric characters and expected special characters
• Deploy a reverse proxy or WAF configured to filter SQL injection patterns from incoming requests
• Modify the application code to use prepared statements or parameterized queries for all database interactions
• Apply network segmentation to isolate the vulnerable application from critical systems and sensitive data
• Consider replacing the vulnerable system with a more secure visitor management solution if patching is not feasible

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:searchdata "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt blocked in searchdata parameter',\
    tag:'attack-sqli'"