> ## Documentation Index
> Fetch the complete documentation index at: https://rootea.es/llms.txt
> Use this file to discover all available pages before exploring further.

# DOM XSS via client-side prototype pollution

> PortSwigger Web Security Academy lab: DOM XSS via client-side prototype pollution. Tema: Prototype Pollution.

# DOM XSS via client-side prototype pollution

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> PortSwigger · Prototype Pollution</p>

<div className="machine-meta">
  | ·           | ·                                                                                                                                                 |
  | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Plataforma  | PortSwigger Web Security Academy                                                                                                                  |
  | Tema        | Prototype Pollution                                                                                                                               |
  | Dificultad  | <span className="dbadge dbadge-medium">PRACTITIONER</span>                                                                                        |
  | Lab oficial | [Abrir](https://portswigger.net/web-security/prototype-pollution/client-side/lab-prototype-pollution-dom-xss-via-client-side-prototype-pollution) |
</div>

## Resolver el lab

| Idioma  | Autor           | Formato | Enlace                                                                                                                                            |
| ------- | --------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| 🇬🇧 EN | **PortSwigger** | Texto   | [Abrir](https://portswigger.net/web-security/prototype-pollution/client-side/lab-prototype-pollution-dom-xss-via-client-side-prototype-pollution) |

## Recursos por skill

| Skill                      | Fuente      | Enlace                                                                                      |
| -------------------------- | ----------- | ------------------------------------------------------------------------------------------- |
| Prototype Pollution        | PortSwigger | [Abrir](https://portswigger.net/web-security/prototype-pollution)                           |
| Cross-Site Scripting (XSS) | HackTricks  | [Abrir](https://book.hacktricks.wiki/en/pentesting-web/xss-cross-site-scripting/index.html) |
| Cross-Site Scripting (XSS) | PortSwigger | [Abrir](https://portswigger.net/web-security/cross-site-scripting)                          |

## Skills relacionadas

[Prototype Pollution](/skills/prototype-pollution) · [Cross-Site Scripting (XSS)](/skills/xss)

***

## Comentarios y truquillos

¿Has resuelto el lab por una vía distinta? Compártela aquí — los comentarios viven en [GitHub Discussions](https://github.com/FFuson/HTB_Writeups/discussions).

<div className="rootea-giscus-wrap" data-giscus-term="lab:prototype-pollution-client-side-prototype-pollution-dom-xss-via-client-side-prototype-pollution" data-giscus-lang="es" />

*Última actualización: 2026-05-08*

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