> 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/pt-br/web/xss/xss-in-template-literal-with-escaped-unicode.md).
# XSS em um template literal com caracteres Unicode escapados
### XSS refletido em um literal de template com sinais de menor e maior, aspas simples, aspas duplas, barra invertida e backticks escapados em Unicode
XSS refletido em um literal de template (backticks) em que `<` e `>` os sinais de menor e maior, assim como as aspas simples e duplas, são codificados, e o backtick é escapado em Unicode. O objetivo: causar a execução de `alert()` dentro do template de string.
O parâmetro de busca é refletido em um literal de template do JavaScript. A string de template precisa ser quebrada para executar `alert()` a partir do valor refletido.
var message = `2 search results for 'test'`;
document.getElementById('searchMessage').innerText = message;
* O caractere backtick (`` ` ``) delimita o literal de template; a página escapa o backtick fornecido pelo usuário (por exemplo, usando escape Unicode), impedindo uma fuga simples.
Exemplo da diferença de interpolação em JS (ilustração):
```javascript
variable = "Testing";
console.log("A variável é: ${variable}")
console.log(`A variável é: ${variable}`)
```
A primeira linha exibe literalmente `${variable}`, a segunda interpreta a variável com backticks.
* Tentando inserir uma expressão de interpolação que executa `alert()`:
```javascript
${alert(0)}
```
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