| 标题 | itsmeravitejak Online-Examination-System e6208e630b14657999bbfe4c9912302d2a1e2449 SQL Injection |
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| 描述 | The affected component is `exammanger.php`, a small AJAX endpoint that loads the topic list for the exam settings form. It includes only `include/database.php` (no session or login check) and passes the POST parameter `subject` straight into `MySQLDB::topicslist()`:
```php
$database->topicslist($_POST['subject']);
...
$where="where sub_id=".$subid;
$res=$this->query("select top_id,top_title from ".TBL_TOPICS." ".$where);
```
The `subject` value is a numeric string concatenated into the query without quotes, escaping or validation, and the endpoint requires no authentication. A UNION-based payload such as `subject=0 UNION SELECT 1,concat(username,0x3a,password,0x3a,userlevel) FROM users` makes the application print the `users` table (username, MD5 password hash, user level) into the returned `<option>` elements, i.e. unauthenticated in-band extraction of arbitrary database content.
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| 来源 | ⚠️ https://github.com/itsmeravitejak/Online-Examination-System/issues/7 |
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| 用户 | PrivacyFirst (UID 101731) |
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| 提交 | 2026-09-29 13時17分 (18 日前) |
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| 管理 | 2026-10-17 11時35分 (18 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 421585 [itsmeravitejak Online-Examination-System 直到 e6208e630b14657999bbfe4c9912302d2a1e2449 AJAX Endpoint exammanger.php MySQLDB::topicslist subject SQL注入] |
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| 积分 | 20 |
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