> 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/cookie-theft-via-xss.md).
# 通过 XSS 窃取 Cookie
通过 XSS 窃取 Cookie 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。
### 利用跨站脚本攻击窃取 Cookie
该实验室在博客评论功能中存在一个存储型 XSS 漏洞。受害用户会在发布后查看评论。教学目标是理解客户端注入如何导致会话信息泄露，以及如何加以防护。
评论字段未对用户输入应用充分的编码或转义，允许浏览器在其他用户显示页面时注入内容。
```javascript
```
我们使用 `fetch` 来发起请求：
```javascript
```
请求到达监听基础设施。
我们发送会话 Cookie：
```javascript
```
```
secret=QplRMu1d8Cvif8Ai7En7j3ADRb0DZxa0;
session=sw0gW8IuyBITTD0ChgDydWcmuFx5J79D
```
然后我们替换会话 Cookie。
你也可以在发送前将内容编码为 base64：
```javascript
```
---
# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:
```
GET https://hacking-notes.jord4n.pro/zh/web/xss/cookie-theft-via-xss.md?ask=&goal=
```
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