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

# Paper

> Verified writeups for the Paper machine of Hack The Box

# Paper

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> WordPress draft view → Rocket.Chat bot → Polkit (CVE-2021-3560)</p>

<div className="cve-row"><span className="cve-row-label">CVE / Bulletins:</span> <a className="cve-chip" href="https://nvd.nist.gov/vuln/detail/CVE-2021-3560" target="_blank" rel="noopener">CVE-2021-3560 ↗</a></div>

<div className="machine-meta">
  | ·                | ·                                                                                                                                                        |
  | ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Operating system | Linux                                                                                                                                                    |
  | Difficulty       | Easy                                                                                                                                                     |
  | Vector           | <span className="vbadge vbadge-web">Web</span>                                                                                                           |
  | IP               | `10.10.11.143`                                                                                                                                           |
  | Retirement date  | 2022-06-18                                                                                                                                               |
  | Skills           | Information Leakage Abussing WordPress - Unauthenticated View Private/Draft Posts Abusing Rocket Chat Bot Polkit (CVE-2021-3560) \[Privilege Escalation] |
</div>

## Writeups

| Language | Author                   | Format | Link                                                     |
| -------- | ------------------------ | ------ | -------------------------------------------------------- |
| 🇪🇸 ES  | **S4vitar**              | Vídeo  | [Open](https://www.youtube.com/watch?v=7X5p3WmSnIs)      |
| 🇪🇸 ES  | **El Pingüino de Mario** | Vídeo  | [Open](https://www.youtube.com/watch?v=NSlHCSNYWK4)      |
| 🇬🇧 EN  | **0xdf**                 | Texto  | [Open](https://0xdf.gitlab.io/2022/06/18/htb-paper.html) |
| 🇬🇧 EN  | **IppSec**               | Vídeo  | [Open](https://www.youtube.com/watch?v=4e4wKDrANog)      |

## Skill resources

Curated documentation for each technique listed in the *Skills* column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

| Skill                  | Source     | Link                                                                                              |
| ---------------------- | ---------- | ------------------------------------------------------------------------------------------------- |
| Information Leakage    | HackTricks | [Open](https://book.hacktricks.wiki/en/pentesting-web/information-leak.html)                      |
| WordPress Exploitation | HackTricks | [Open](https://book.hacktricks.wiki/en/network-services-pentesting/pentesting-web/wordpress.html) |

## Related skills worth mastering

Remote Code Execution (RCE)

## If you liked this machine, try

* [Blocky](/en/htb/machines/linux/facil/blocky) — Linux, Easy
* [Brainfuck](/en/htb/machines/linux/insano/brainfuck) — Linux, Insane
* [Admirer](/en/htb/machines/linux/facil/admirer) — Linux, Easy
* [Haystack](/en/htb/machines/linux/facil/haystack) — Linux, Easy
* [Apocalyst](/en/htb/machines/linux/medio/apocalyst) — Linux, Medium

***

## Comments & tips

Did the official writeup not work? Found a smarter trick? Share it here — comments live in [GitHub Discussions](https://github.com/FFuson/HTB_Writeups/discussions).

<div className="rootea-giscus-wrap" data-giscus-term="machine:paper" data-giscus-lang="en" />

*Last updated: 2026-07-13*

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