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Improved Report Quality for Takumi Blackbox Assessments

· 2 min read
Tsubasa Umeuchi
Software Engineer @ GMO Flatt Security Inc.

Takumi blackbox assessment reports have been improved.

Reports are now more readable and actionable, with clearer reproduction steps, more specific remediation guidance, and consistent formatting throughout.

What's Improved

This update refines the report generation process to improve overall report quality.

Clearer Reproduction Steps

Vulnerability reproduction steps are now more concise and specific.

  • Removed redundant steps and duplicate verification actions, keeping only essential steps
  • Each step describes a concrete action for the reader to perform
  • Observation-only steps are merged into adjacent action steps

Before:

  1. Enter <script>alert('XSS')</script> in the search form
  2. Click the search button
  3. The script is reflected on the page
  4. An alert dialog appears

After:

  1. Enter <script>alert('XSS')</script> in the search form and click the search button
  2. Verify that an alert dialog appears

More Specific Remediation

Vulnerability fixes are now presented in a more actionable format.

  • Primary remediation is clearly stated
  • Supplementary measures are presented in paragraph form with clear priority
  • Specific guidance that developers can reference during remediation work

Before:

To address XSS, escape the output. Also, sanitize the input. Additionally, implement XSS protection.

After:

To address XSS, always escape user input when outputting to HTML. As a supplementary measure, setting Content-Security-Policy headers to restrict inline script execution is also effective.

Consistent Formatting

Reports now have unified formatting throughout.

  • Parameter names and code elements are properly formatted
  • URLs and links use consistent notation
  • Writing style is consistent throughout

Before:

Change the user_id parameter

After:

Change the user_id parameter

Availability

This feature is already available to all Takumi by GMO users. Simply start a blackbox assessment to use the latest features.