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

# Remote code execution via server-side prototype pollution

> PortSwigger Web Security Academy lab: Remote code execution via server-side prototype pollution. Topic: Prototype Pollution.

# Remote code execution via server-side prototype pollution

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

<div className="machine-meta">
  | ·            | ·                                                                                                                                          |
  | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------ |
  | Platform     | PortSwigger Web Security Academy                                                                                                           |
  | Topic        | Prototype Pollution                                                                                                                        |
  | Difficulty   | <span className="dbadge dbadge-medium">PRACTITIONER</span>                                                                                 |
  | Official lab | [Open](https://portswigger.net/web-security/prototype-pollution/server-side/lab-remote-code-execution-via-server-side-prototype-pollution) |
</div>

## Solve the lab

| Language | Author          | Format | Link                                                                                                                                       |
| -------- | --------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------ |
| 🇬🇧 EN  | **PortSwigger** | Texto  | [Open](https://portswigger.net/web-security/prototype-pollution/server-side/lab-remote-code-execution-via-server-side-prototype-pollution) |

## Resources by skill

| Skill                       | Source      | Link                                                                          |
| --------------------------- | ----------- | ----------------------------------------------------------------------------- |
| Remote Code Execution (RCE) | HackTricks  | [Open](https://book.hacktricks.wiki/en/pentesting-web/command-injection.html) |
| Prototype Pollution         | PortSwigger | [Open](https://portswigger.net/web-security/prototype-pollution)              |

## Related skills

[Remote Code Execution (RCE)](/en/skills/rce) · [Prototype Pollution](/en/skills/prototype-pollution)

***

## Comments & tips

Solved this lab a different way? Share it here — comments live in [GitHub Discussions](https://github.com/FFuson/HTB_Writeups/discussions).

<div className="rootea-giscus-wrap" data-giscus-term="lab:prototype-pollution-server-side-remote-code-execution-via-server-side-prototype-pollution" data-giscus-lang="en" />

*Last updated: 2026-05-08*

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