HackEDU Lesson Help

This collection contains articles around basic troubleshooting, specific lesson help & common issues

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42 articles in this collection
Written by Rachel Yonan, John Campbell, Jared Bautista and 2 others

Prepared Statements in C

A short description on writing prepared statements in C for lessons like SQL injection.

Written by Tyler Cooper
Updated over a week ago

Accessing the Browser Console

Explanation of how to open your browser's console on all popular web browsers

Written by Rachel Yonan
Updated over a week ago

DOM-Based Cross-Site Scripting (XSS)

Some additional information on DOM-Based Cross-Site Scripting (XSS) solutions

Written by John Campbell
Updated over a week ago

How to navigate the HackEDU Break/Fix Lessons

This article provides an in-depth overview of our Break/Fix content and how to navigate the live web sandbox and tools.

Written by Rachel Yonan
Updated over a week ago

Python String Formatting and SQL Injection Attacks

This article describes why using prepared statements / parameterized queries are the preferred methods to prevent SQL Injections.

Written by Noah Morse
Updated over a week ago

Assessment Hints

This article describes the in content help we provide to developers while taking our coding challenges

Written by Rachel Yonan
Updated over a week ago

Tips for getting output

This article outlines some tips for getting output while completing a lesson.

Written by Rachel Yonan
Updated over a week ago

How to check for 500 Errors

This article will provide you options for resolving 500 errors during training

Written by Rachel Yonan
Updated over a week ago

How to Generate a .HAR File for Debugging

This article will outline how to capture and download a .HAR file for debugging

Written by Rachel Yonan
Updated over a week ago

Broken Authentication Lesson Help

Login Functionality Is Broken Error (Broken Authentication Lesson)

This article explains how to resolve when logging into the sandbox app is broken

Written by Rachel Yonan
Updated over a week ago

Logout Functionality Is Broken Error (Broken Authentication Lesson)

This article explains how to troubleshoot when the logout functionality in the sandbox is broken

Written by Rachel Yonan
Updated over a week ago

Authentication Search Vulnerability Is Not Fixed (Broken Authentication Lesson)

This article provides instructions on how to resolve "authentication search vulnerability is not fixed" error

Written by Rachel Yonan
Updated over a week ago

Search Functionality Is Broken Error (Broken Authentication Lesson)

This article provides instructions on how to resolve "search functionality is broken" error

Written by Rachel Yonan
Updated over a week ago

Account Access Vulnerability Is Not Fixed (Broken Authentication Lesson)

This article provides instructions on how to resolve "account access vulnerability is not fixed" error

Written by Rachel Yonan
Updated over a week ago

Account Access Functionality Is Broken Error (Broken Authentication Lesson)

This article provides instructions on how to resolve "account access functionality is broken" error

Written by Rachel Yonan
Updated over a week ago

Broken Access Control Lesson Help

Login Functionality Is Broken Error (Broken Access Control Lesson)

This article explains how to troubleshoot when logging into the sandbox app is broken

Written by Rachel Yonan
Updated over a week ago

Vulnerability Is Not Fixed (Broken Access Control)

This article provides instructions on how to resolve "vulnerability is not fixed" error

Written by Rachel Yonan
Updated over a week ago

Command Injection Lesson Help

Add File Functionality Is Broken (Command Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Add File Vulnerability Not Fixed (Command Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Cross-Site Scripting Lesson Help

Post Functionality Error (Cross-Site Scripting Lesson)

Written by Rachel Yonan
Updated over a week ago

Add File Vulnerability Not Fixed (Cross-Site Scripting Lesson)

Written by Rachel Yonan
Updated over a week ago

Insufficient Logging Lesson Help

Search Vulnerability Not Fixed (Insufficient Logging Lesson)

Written by Rachel Yonan
Updated over a week ago

Search Functionality Is Broken Error (Insufficient Logging Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Vulnerability Not Fixed (Insufficient Logging Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Vulnerability Not Fixed Correctly (Insufficient Logging Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Failure Functionality Error (Insufficient Logging Lesson)

Written by Rachel Yonan
Updated over a week ago

SQL Injection Lesson Help

Internal Server Error (SQL Injection Lesson)

This article provides instructions on how to resolve an Internal Server Error

Written by Rachel Yonan
Updated over a week ago

Login Vulnerability Additional Checks Not Fixed Error (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Post Vulnerability Not Fixed (XML External Entities Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Vulnerability Not Fixed Error (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Failure Functionality Error (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Login Functionality Error (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Post Functionality Is Broken (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Special Character Functionality Not Fixed Error (SQL Injection Lesson)

Written by Rachel Yonan
Updated over a week ago

Secure Password Storage Help

Register/Login Functionality Is Broken (Secure Password Storage Part 1 and Part 2)

Written by Jared Bautista
Updated over a week ago

Register/Login Functionality Is Broken (Secure Password Storage Part 3)

Written by Jared Bautista
Updated over a week ago

Vulnerability Is Not Fixed (Secure Password Storage: Part 1 Lesson)

Written by Jared Bautista
Updated over a week ago

Vulnerability Is Not Fixed (Secure Password Storage: Part 2 Lesson)

Written by Jared Bautista
Updated over a week ago

Vulnerability Is Not Fixed (Secure Password Storage: Part 3 Lesson)

Written by Jared Bautista
Updated over a week ago

XML External Entities Help

Find Functionality Is Broken (XML External Entities Lesson)

Written by Rachel Yonan
Updated over a week ago

Upload Functionality Is Broken (XML External Entities Lesson)

Written by Rachel Yonan
Updated over a week ago

Upload XXE Vulnerability Is Not Fixed (XML External Entities Lesson)

Written by Rachel Yonan
Updated over a week ago