CVE-2025-50349
📋 TL;DR
PHPGurukul Pre-School Enrollment System V1.0 contains a directory traversal vulnerability in update-teacher-pic.php that allows attackers to read arbitrary files on the server. This affects all installations of this specific version of the software. Attackers can potentially access sensitive configuration files, source code, or other protected data.
💻 Affected Systems
- PHPGurukul Pre-School Enrollment System Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise through reading sensitive files like configuration files containing database credentials, followed by database access and potential lateral movement.
Likely Case
Information disclosure of sensitive files including configuration files, source code, or user data stored on the server.
If Mitigated
Limited impact with proper file permissions and web server configuration restricting access to sensitive directories.
🎯 Exploit Status
Directory traversal vulnerabilities are typically easy to exploit with simple path traversal sequences like ../../../etc/passwd
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
1. Check for official patch from PHPGurukul
2. If no patch available, implement workarounds
3. Consider replacing with alternative software
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd proper input validation to update-teacher-pic.php to filter out directory traversal sequences
Modify update-teacher-pic.php to validate file paths and reject any containing ../ or similar traversal sequences
File Access Restriction
allRestrict file operations to specific directories using basename() or realpath() validation
Implement path normalization and restrict file access to specific allowed directories only
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block directory traversal patterns
- Restrict access to update-teacher-pic.php using authentication or IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Test by accessing update-teacher-pic.php with traversal payloads like ?file=../../../etc/passwdCheck Version:
Check software version in admin panel or readme filesVerify Fix Applied:
Attempt exploitation with same payloads after implementing fixes - should return error or sanitized path📡 Detection & Monitoring
Log Indicators:
- HTTP requests to update-teacher-pic.php containing ../ sequences
- Unusual file access patterns in web server logs
Network Indicators:
- HTTP requests with directory traversal payloads in URL parameters
SIEM Query:
source="web_server_logs" AND (url="*update-teacher-pic.php*" AND (url="*../*" OR url="*..\\*"))