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File Inclusion Vulnerabilities: Understanding LFI and RFI for Beginners (2026 Guide)

Introduction In this part of the cybersecurity series, we will explore a critical web vulnerability known as File Inclusion . File Inclusion occurs when a web application allows users to control which files are loaded or executed on the server without proper validation. This vulnerability can lead to sensitive data exposure or even full server compromise. What is File Inclusion? File Inclusion is a vulnerability where an application includes files based on user input without proper validation or restrictions. There are two main types of File Inclusion vulnerabilities: Local File Inclusion (LFI) Remote File Inclusion (RFI) 1. Local File Inclusion (LFI) LFI allows an attacker to access and sometimes execute files that are stored on the local server. How LFI Works Consider a website that loads pages using a parameter: https://example.com/view.php?page=contact.php If the application is vulnerable, an attacker can manipulate the parameter: https://example.com/view.php?page=../../../../etc/p...

Ethical Hacking & Penetration Testing Roadmap (2026)

A Complete Beginner-to-Professional Guide Why Learn Ethical Hacking? In today’s digital environment, organizations constantly face cyber threats. Ethical hackers play a key role in identifying vulnerabilities before attackers can exploit them. This field offers: High demand career opportunities Continuous learning Multiple income streams (job, bug bounty, freelancing) Quick Overview of the Roadmap This roadmap is divided into 7 practical stages: Fundamentals Web Security Hands-on Practice Tools Mastery Real-World Testing Reporting Skills Specialization Stage 1: Fundamentals (Build Your Base) Before touching any hacking tools, you must understand the basics. Networking IP Addressing TCP/UDP DNS & HTTP/HTTPS Operating Systems Linux (essential) Windows basics Programming Python (automation) JavaScript (web understanding) Stage 2: Web Security (Core Skills) Focus on the most common vulnerabilities: SQL Injection Cross-Site Scripting (XSS) Broken Access Control (IDOR) File Inclusion SSR...

WHOIS Lookup (2026): Uncovering Domain Ownership & Server Details

Welcome to another segment of our Information Gathering series! In our previous post, we explored WhatWeb to identify a website's internal technology stack. However, to understand who is behind a website, when it was registered, or which company manages its infrastructure, we need a technique called WHOIS Lookup . WHOIS is a fundamental footprinting method used by penetration testers to gather domain-level intelligence. What is WHOIS? WHOIS (pronounced as the phrase "who is") is a query and response protocol used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name or an IP address block. Essentially, it acts as a public directory providing details about domain ownership, registration dates, expiry dates, and authoritative name servers. Why is it Important for Ethical Hackers? For a security researcher, a WHOIS lookup is vital for several reasons: Ownership Identity: Identifies the person or organization ...

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