Pdfy Htb Writeup Upd Work May 2026

PDFy

For a writeup of the challenge on Hack The Box (HTB) , the primary vulnerability lies in an SSRF (Server-Side Request Forgery) found in the PDF generation process. The application uses the wkhtmltopdf tool, which can be manipulated to interact with internal resources. Challenge Overview

Common location:

You might find a user (e.g., robert or pdfuser ). Check their home directory: pdfy htb writeup upd

$ nc -l -p 4444

Recommendations

Test SSRF with an external listener:

Once you successfully render /etc/passwd , you have confirmed the LFI/SSRF vulnerability. PDFy For a writeup of the challenge on

• Find an endpoint that accepts a PDF upload or a URL param for file conversion/viewing.
• Test Local File Inclusion (LFI) by manipulating filename/paths or URL parameters. Try:

  Downloading the PDF file does not reveal any sensitive information. Find an endpoint that accepts a PDF upload