| 标题 | itsmeravitejak Online-Examination-System e6208e630b14657999bbfe4c9912302d2a1e2449 SQL Injection |
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| 描述 | The affected component is the `admin/` directory: `admin/qsdb.php`, `admin/usersdb.php`, `admin/brandb.php`, `admin/topicsdb.php` and `admin/subjectsdb.php`. These endpoints build the flexigrid query by concatenating the unauthenticated POST parameters `query`, `qtype`, `sortname` and `sortorder` directly into the SQL statement:
```php
$where = "";
if ($query) $where = " WHERE $qtype LIKE '%$query%' ";
$sort = "ORDER BY $sortname $sortorder";
$sql = "SELECT q_id,q_text,q_op1,q_op2,q_op3,q_op4,q_ans,top_id FROM questions $where $sort $limit";
```
Because the endpoints perform no authentication (see the separate missing-authentication report), any visitor can exploit the injection. Submitting `qtype=1=1 UNION SELECT username,password,email,userlevel,5,6,7,8 FROM users -- ` makes the application return the `users` table (username, MD5 password hash, email, user level) inside the JSON grid, i.e. unauthenticated in-band extraction of arbitrary database content.
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| 来源 | ⚠️ https://github.com/itsmeravitejak/Online-Examination-System/issues/5 |
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| 用户 | PrivacyFirst (UID 101731) |
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| 提交 | 2026-09-29 13時16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 | 421583 [itsmeravitejak Online-Examination-System 直到 e6208e630b14657999bbfe4c9912302d2a1e2449 subjectsdb.php query/qtype/sortname/sortorder SQL注入] |
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| 积分 | 20 |
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