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How CVE-2025-50349 Works
The vulnerability exists in `update-teacher-pic.php` due to insufficient input validation. Attackers can manipulate file paths using `../` sequences to traverse directories and upload malicious files outside the intended directory. This allows arbitrary file write/overwrite, potentially leading to remote code execution (RCE) by uploading a webshell. The system fails to sanitize user-supplied filenames, enabling attackers to bypass restricted upload locations.
DailyCVE Form
Platform: PHPGurukul Pre-School Enrollment
Version: 1.0
Vulnerability: Directory Traversal
Severity: Critical
Date: 06/25/2025
Prediction: Patch by 07/15/2025
What Undercode Say
curl -X POST -F "[email protected];filename=../../malicious.php" http://target/update-teacher-pic.php
// Vulnerable code snippet (update-teacher-pic.php) $target_dir = "uploads/"; $target_file = $target_dir . basename($_FILES["file"]["name"]); move_uploaded_file($_FILES["file"]["tmp_name"], $target_file);
How Exploit
1. Craft a malicious PHP file.
2. Bypass upload restrictions using `../` sequences.
3. Overwrite system files or deploy webshells.
Protection from this CVE
- Input sanitization
- Path normalization
- File extension whitelisting
Impact
- Remote Code Execution
- Data manipulation
- System compromise
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
