Submit #829543: sayan365 student-management-system 1.0 Unauthenticated Access

The project enforces login checks only on `index.php`, `add_*`, and `view_*` pages. However, multiple critical **edit** and **delete** endpoints completely lack any session validation. Files like `edit_student.php` do not call `session_start()` and never check for `$_SESSION['username']`. As a result, an unauthenticated attacker can directly access these pages, read existing data, submit modifications, or trigger deletion actions without ever logging in.

Example from `edit_student.php`:
```php
<?php
include 'db.php';
if (isset($_GET['id'])) {
// no session check at all
...
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// update logic
}
}
```

• Source: ⚠️ https://github.com/sayan365/student-management-system/issues/2
• User: guobei (UID 97647)
• Submission: 05/14/2026 09:26 (27 days ago)
• Moderation: 06/03/2026 07:36 (20 days later)
• Status: Duplicate
• VulDB entry: 367927 [sayan365 student-management-system up to 7f3c9ce7d410332335c2affac93a385485051800 improper authentication]
• Points: 0