Writing a Professional Penetration Test Report

Why Reporting Matters

A penetration test is only valuable if you clearly communicate what you discovered. A professional report helps your audience—often non-technical stakeholders—understand the risks and how to fix them. Your report bridges the gap between technical details and business decisions.

Key Sections of a Penetration Test Report

• Executive summary: Gives a high-level overview of what was tested, the main findings, and the overall security posture;
• Scope and methodology: Explains what systems were tested, what was out of scope, and the approach used;
• Findings: Lists each vulnerability or issue found, its risk level, and supporting details;
• Recommendations: Provides clear, actionable steps for fixing or mitigating each finding;
• Appendices: Includes technical evidence, such as screenshots or logs, supporting your findings.

Communicating Findings Effectively

Use simple, direct language. Avoid jargon unless you define it. For each finding, answer three questions:

1. What is the issue?
   • Example: "The login page does not enforce strong passwords."
2. Why does it matter?
   • Example: "Weak passwords make it easier for attackers to gain unauthorized access."
3. How can it be fixed?
   • Example: "Require passwords to be at least 12 characters and include a mix of letters, numbers, and symbols."

Presenting Risks and Recommendations

Assign a risk level to each finding, such as High, Medium, or Low. Support your assessment with clear reasoning. For instance:

• High risk: "Sensitive customer data is accessible without authentication. Immediate action is required."
• Medium risk: "Outdated software may allow attackers to exploit known vulnerabilities. Plan to update as soon as possible."
• Low risk: "Error messages reveal minor information about the server. Consider adjusting settings when time allows."

Always pair each risk with a specific recommendation. Use bullet points for clarity.

Practical Example: Reporting a SQL Injection

Finding: The search feature allows SQL injection.

Risk: High. Attackers could access or modify the database.

Recommendation: Use parameterized queries in all database calls to prevent injection.

Evidence: Screenshot showing a successful injection and the returned database information.