Submeter #700465: Sourcecodester Online Student Clearance System Project 1.0 /Admin/delete-fee.php Broken Access Control

# Sourcecodester Online Student Clearance System Project V1.0 /Admin/delete-fee.php Broken Access Control
#### NAME OF AFFECTED PRODUCT(S)
- Online Student Clearance System
#### Vendor Homepage
- https://www.sourcecodester.com/php/17892/online-clearance-system.html
#### submitter
- yudeshui
#### Vulnerable File
- /Admin/delete-fee.php
#### VERSION(S)
- V1.0
#### Software Link
- https://www.sourcecodester.com/sites/default/files/download/Senior%20Walter/student_clearance_system_aurthur_javis.zip
PROBLEM TYPE

### 1\. Unauthorized Data Deletion

This vulnerability is found in the **Online Student Clearance System** project.

#### ???? Vulnerable File Location

`Admin/delete-fee.php` (Lines 6-10)

#### ???? Vulnerable Code

```php
error_reporting(0);
include('../connect.php');
include('../connect2.php');

$id= $_GET['id'];
$sql = "DELETE FROM fee WHERE ID=?";
$stmt= $dbh->prepare($sql);
$stmt->execute([$id]);

header("Location: add-fee.php");
```

#### ???? Description

The script `Admin/delete-fee.php` executes a `DELETE` query on the `fee` table based on the ID provided via the **`GET`** parameter `id`.

This is a **Broken Access Control** vulnerability, as the script **lacks any authorization checks** (e.g., verifying if the user is logged in or has administrator privileges). Any user, including unauthenticated users, can execute this script by directly accessing the URL (e.g., `/Admin/delete-fee.php?id=123`), leading to unauthorized data deletion.

#### ????️ Suggested Mitigation

Implement a strict **authorization and authentication check** at the beginning of the script. Ensure that only users with the appropriate administrative role are permitted to execute the deletion operation.

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• Fonte: ⚠️ https://github.com/rassec2/dbcve/issues/8
• Utilizador: yudeshui (UID 91129)
• Submissão: 24/11/2025 07h34 (há 7 meses)
• Moderação: 07/12/2025 09h02 (13 days later)
• Estado: Aceite
• Entrada VulDB: 334649 [SourceCodester Online Student Clearance System 1.0 Fee Table /Admin/delete-fee.php ID Elevação de Privilégios]
• Pontos: 20