CVE-2026-3767
📋 TL;DR
This CVE describes a SQL injection vulnerability in itsourcecode's 'sanitize or validate this input 1.0' software. Attackers can exploit the teacher_id parameter in /admin/teacher-attendance.php to execute arbitrary SQL commands remotely. Organizations using this specific software version are affected.
💻 Affected Systems
- itsourcecode sanitize or validate this input
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, modification, deletion, or potential server takeover via SQL injection escalation.
Likely Case
Unauthorized access to sensitive teacher/student data, grade manipulation, or administrative credential theft.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easily exploitable by attackers with basic SQL injection knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates. Implement parameterized queries and input validation immediately.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for teacher_id parameter to only accept expected formats (numeric values).
Modify /admin/teacher-attendance.php to validate teacher_id using is_numeric() or similar functions
Web Application Firewall (WAF) Rules
allDeploy WAF rules to block SQL injection patterns targeting teacher_id parameter.
Add WAF rule: Block requests containing SQL keywords (UNION, SELECT, INSERT, etc.) in teacher_id parameter
🧯 If You Can't Patch
- Restrict network access to the affected admin interface using firewall rules
- Implement database user with minimal permissions (read-only where possible)
🔍 How to Verify
Check if Vulnerable:
Test the teacher_id parameter with SQL injection payloads like: teacher_id=1' OR '1'='1Check Version:
Check software version in configuration files or admin interfaceVerify Fix Applied:
Verify that SQL injection payloads no longer work and return proper error handling📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts via teacher-attendance.php
- Unexpected database queries from web server
Network Indicators:
- HTTP requests to /admin/teacher-attendance.php with SQL keywords in parameters
- Unusual database traffic patterns from web server
SIEM Query:
source="web_logs" AND uri="/admin/teacher-attendance.php" AND (param="teacher_id" AND value MATCH "[';]|UNION|SELECT|INSERT")