CVE-2026-2058
📋 TL;DR
This CVE describes a SQL injection vulnerability in the CloudClassroom-PHP-Project software that allows remote attackers to execute arbitrary SQL commands via the 'gnamex' parameter in the /postquerypublic.php file. This affects all deployments of the software up to commit 5dadec098bfbbf3300d60c3494db3fb95b66e7be. The vendor uses a rolling release model and has not responded to disclosure attempts.
💻 Affected Systems
- mathurvishal CloudClassroom-PHP-Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, authentication bypass, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access and extraction from the database, potentially exposing sensitive user information, course materials, and system data.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
The exploit has been published and the vulnerability is remotely exploitable without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider implementing parameterized queries and input validation in /postquerypublic.php.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns targeting the gnamex parameter
Input Validation Filter
allAdd input validation to sanitize the gnamex parameter before processing
// PHP example: filter_var($_GET['gnamex'], FILTER_SANITIZE_STRING);
🧯 If You Can't Patch
- Restrict network access to the application to trusted IPs only
- Implement database user with minimal privileges for the application
🔍 How to Verify
Check if Vulnerable:
Check if your deployment uses code from commit 5dadec098bfbbf3300d60c3494db3fb95b66e7be or earlier. Test the /postquerypublic.php endpoint with SQL injection payloads in the gnamex parameter.Check Version:
git log --oneline -1Verify Fix Applied:
Verify that SQL injection attempts on the gnamex parameter are properly rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts following SQL injection patterns
- Requests to /postquerypublic.php with suspicious gnamex parameter values
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) in URL parameters
- Unusual traffic patterns to the vulnerable endpoint
SIEM Query:
source="web_logs" AND uri="/postquerypublic.php" AND (param="gnamex" AND value MATCH "(?i)(union|select|insert|update|delete|drop|--|#|;)")