> 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/xss-in-a-javascript-string-with-apostrophe-and-backslash-escaped.md).
# JavaScript 字符串中的 XSS，单引号和反斜杠已转义
JavaScript 字符串中的 XSS，单引号和反斜杠已转义笔记，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 remediati
### 通过转义单引号和反斜杠将反射型 XSS 注入到 JavaScript 字符串中
搜索词追踪功能中的反射型 XSS。反射的值被插入到一个 JavaScript 字符串中；普通单引号和反斜杠已被转义，使得逃逸变得困难。
目标
* 跳出已转义的 JavaScript 字符串并调用 `alert()`.
当前观察
* 如果 `测试` 发送后，该值会存储在 `searchTerm` 脚本的变量中。
* 尝试引入一个新变量：/ `testing'; var=test='thisIsATest`/ → 观察到引号和反斜杠（）被注入/存在，并阻止直接注入。
```bash
testing'; var=test='thisIsATest
```
* 只需插入脚本闭合标签即可关闭脚本上下文： ``
```javascript
```
* 关闭后，可以渲染简单的 HTML 文本： `
HACK
`
```javascript
HACK
```
* 最后，还可以运行一个 `alert` 通过添加一个新的 ``
```javascript
```
---
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