CVE-2025-6836
📋 TL;DR
A critical SQL injection vulnerability in code-projects Library System 1.0 allows remote attackers to execute arbitrary SQL commands via the phone parameter in profile.php. This can lead to unauthorized data access, modification, or deletion. All deployments of Library System 1.0 with the vulnerable profile.php file are affected.
💻 Affected Systems
- code-projects Library System
📦 What is this software?
Library System by Code Projects
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, modification, deletion, or potential remote code execution if database functions allow it.
Likely Case
Unauthorized access to sensitive library data (user information, book records, admin credentials), data manipulation, or denial of service.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
Exploit details are publicly available. SQL injection via phone parameter is straightforward to exploit with common tools like sqlmap.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
No official patch available. Consider implementing input validation and parameterized queries manually, or migrate to a supported alternative.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to only accept expected phone number formats (digits, dashes, parentheses) and reject SQL special characters.
# Example PHP validation snippet
$phone = $_POST['phone'];
if (!preg_match('/^[0-9\-()\s]+$/', $phone)) {
die('Invalid phone number');
}
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection rules to block malicious requests to profile.php.
# ModSecurity rule example
SecRule ARGS:phone "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Disable or restrict access to profile.php if not essential.
- Implement network segmentation to isolate the Library System from sensitive databases and other critical systems.
🔍 How to Verify
Check if Vulnerable:
Test the phone parameter in profile.php with SQL injection payloads (e.g., ' OR '1'='1) and observe if SQL errors or unexpected behavior occurs.Check Version:
Check the software version in the admin panel or review the source code for version indicators.Verify Fix Applied:
Retest with SQL injection payloads after applying workarounds; successful fixes should reject malicious input or return generic errors.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts or parameter tampering in access logs for profile.php
Network Indicators:
- HTTP requests to profile.php with SQL keywords (UNION, SELECT, etc.) in parameters
- Abnormal database query patterns from the application server
SIEM Query:
source="web_logs" AND uri="/profile.php" AND (param="phone" AND value MATCHES "(?i)(union|select|insert|delete|update|drop|--|#)")