### 简要描述:
### 详细说明:
\app\group\action\add.php
```
// 执行发布帖子
case "do" :
if ($_POST ['token'] != $_SESSION ['token']) {
tsNotice ( '非法操作!' );
}
$authcode = strtolower ( $_POST ['authcode'] );
if ($TS_SITE ['base'] ['isauthcode']) {
if ($authcode != $_SESSION ['verify']) {
tsNotice ( "验证码输入有误,请重新输入!" );
}
}
$groupid = intval ( $_POST ['groupid'] );
$title = trim( $_POST ['title'] );//重点在这里,没有过滤题目。
```
### 漏洞证明:
登录1111账号-小组-发布帖子。
[<img src="https://images.seebug.org/upload/201503/2620344577affe4cb34c7794db58c2fa88201abc.png" alt="20.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201503/2620344577affe4cb34c7794db58c2fa88201abc.png)
登录另一账号与1111账号在同一小组的admin---我的社区
触发漏洞:
[<img src="https://images.seebug.org/upload/201503/26203508e9bb3dcb21982a509dd09d6e135d49da.png" alt="21.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201503/26203508e9bb3dcb21982a509dd09d6e135d49da.png)
[<img src="https://images.seebug.org/upload/201503/262035194941e0c1c6a16f67356c044d5cdda34b.png" alt="22.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201503/262035194941e0c1c6a16f67356c044d5cdda34b.png)
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