SSRF in Pentestify PDF generation endpoint via Host header

Server-Side Request Forgery (SSRF) (CWE-918) in the PDF generation endpoint GET /api/reports/{id}/pdf (backend/main.py) in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the rendered content in the resulting PDF via a crafted Host header, because the target URL is built from request.base_url without validation.