> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/web/xss/password-capture-via-xss.md).
# 通过 XSS 捕获密码
通过 XSS 捕获密码的笔记，适用于 PortSwigger Web Security Academy 实验室，包括利用流程、载荷测试、Burp Suite 验证和修复上下文。
### 利用跨站脚本攻击获取密码
此实验室在博客评论功能中存在一个持久型 XSS 漏洞。一个模拟用户（受害者）会在发布后查看所有评论。学习目标是利用此缺陷外泄受害者的用户名和密码，然后使用这些凭据登录。
一个小表单被注入到评论中。当受害者输入其信息时， `fetch()` 请求会将这些值发送到攻击者控制的 URL，从而允许捕获用户凭据。
注入的表单
```html
用户：
密码：
```
* 上述表单会在每次修改时触发将 `用户名` 和 `密码` 字段发送到监听 URL（`onchange`).
已捕获的凭据：
* **用户名：** `administrator`
* **密码：** `qzkcz73zlwri7yiwpf31`
---
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