CRXcavator Getting Started: First Scan & Setup (2026)

Getting started overview

CRXcavator is a browser extension security analysis tool developed by Rapid7, designed to help organizations assess the risk associated with Chrome extensions. It provides detailed insights into extension permissions, code vulnerabilities, and overall security posture, assisting security teams in maintaining a secure browser environment CRXcavator documentation overview.

This guide focuses on the initial steps required to get CRXcavator operational: account creation, credential management, and executing your first security scan. CRXcavator is primarily a web-based application, with its core functionality accessible through a user interface rather than a direct developer API. The process involves setting up an account, navigating the web portal to initiate scans, and interpreting the results.

Quick Reference: Getting Started with CRXcavator

Create an account and get keys

CRXcavator is an enterprise solution, meaning access typically begins with a sales engagement with Rapid7. There is no self-service sign-up portal for immediate access. The process for obtaining an account and necessary credentials involves:

1. Contacting Sales: The first step is to engage with the Rapid7 sales team to discuss your organization's needs and obtain a license for CRXcavator. You can initiate this by visiting the Rapid7 CRXcavator product page and requesting a demo or more information.
2. Onboarding Process: Once a license is secured, Rapid7's onboarding team will guide you through the account setup process. This typically involves providing administrative contact information for your organization.
3. Receiving Credentials: You will receive login credentials (username and password) for the CRXcavator web portal. These credentials are used to access the CRXcavator dashboard, where all scanning and analysis functions are performed. Unlike API-first services, CRXcavator does not widely expose API keys for direct programmatic interaction in a developer context; its primary interface is the web application.
4. Multi-Factor Authentication (MFA): For enhanced security, it is highly recommended to enable Multi-Factor Authentication (MFA) if available within your CRXcavator account settings. This adds an extra layer of protection beyond just a username and password. Industry best practices, such as those outlined by the FIDO Alliance, advocate for strong authentication methods like MFA to prevent unauthorized access.

Ensure that all initial login details are stored securely and accessed only by authorized personnel within your organization.

Your first request

Since CRXcavator operates primarily as a web-based application rather than through a direct developer API, your "first request" involves initiating a scan through its user interface. The goal is to submit a Chrome extension for analysis and view its security report.

1. Log in to the CRXcavator Portal: Using the credentials provided during your onboarding, navigate to the CRXcavator web portal URL and log in.
2. Navigate to the Scan Section: On the dashboard, locate the section or menu option dedicated to initiating new scans or analyses. This might be labeled "Scans," "Analyze Extension," or similar.
3. Identify the Extension: You will need to provide CRXcavator with the specific Chrome extension you wish to analyze. This can typically be done in one of two ways, as detailed in the CRXcavator overview documentation:
   • Extension ID: Enter the unique ID of the Chrome extension. This ID can be found in the Chrome Web Store URL for the extension (e.g., https://chrome.google.com/webstore/detail/<extension-name>/<extension-id>) or by navigating to chrome://extensions/ in your browser and enabling "Developer mode" to see extension IDs.
   • Chrome Web Store URL: Paste the full URL of the extension's page from the Chrome Web Store. CRXcavator will then extract the necessary information.
4. Initiate the Scan: After providing the extension identifier, click the "Scan" or "Analyze" button. CRXcavator will then begin its analysis process, which involves downloading the extension, decompressing it, and performing static code analysis and behavioral assessments. The duration of the scan can vary depending on the complexity and size of the extension.
5. Review Scan Results: Once the scan is complete, CRXcavator will present a detailed report. This report typically includes:
   • Risk Score: An aggregated score indicating the overall security risk.
   • Permissions Analysis: A breakdown of the permissions requested by the extension and their potential implications.
   • Vulnerability Findings: Identification of known vulnerabilities or suspicious code patterns.
   • Policy Violations: Any discrepancies with defined organizational security policies.
   • Recommendations: Actionable advice for mitigating identified risks.
6. Example Scan Output (Conceptual):

   Scan ID: CRX-12345-ABCDE
   Extension Name: "Example Productivity Tool"
   Extension ID: abcdefghijklmnopqrstuvwxyz
   
   Overall Risk Score: 7.8/10 (High)
   
   Key Findings:
   - Requires "tabs" permission (Potential data access)
   - Uses `eval()` function (Potential code injection risk)
   - External communication to `example-api.com` (Review data handling)
   
   Policy Violations:
   - "High-risk permissions" policy violated
   
   Recommendations:
   - Investigate `eval()` usage for safer alternatives.
   - Verify data transmission to external domains meets compliance standards.
   - Consider disabling or blocking this extension based on risk score.
   

Common next steps

After successfully performing your first scan with CRXcavator, consider these common next steps to integrate it further into your security operations:

• Define Organizational Policies: CRXcavator allows you to define custom security policies based on your organization's risk tolerance. Configure policies that automatically flag extensions requesting specific permissions, using deprecated APIs, or communicating with unapproved domains. This helps automate the assessment process and ensures compliance CRXcavator policy documentation.
• Integrate with Existing Security Workflows: Explore options to integrate CRXcavator findings into your existing Security Information and Event Management (SIEM) systems or ticketing platforms. While CRXcavator is not API-first, some Rapid7 products offer integration capabilities within the broader Insight platform ecosystem. Consult Rapid7's documentation or support for specific integration pathways.
• Schedule Regular Scans: Implement a schedule for regularly scanning extensions used within your environment. Browser extensions are frequently updated, and new vulnerabilities can emerge. Continuous monitoring is essential for maintaining a strong security posture.
• Educate Users: Based on CRXcavator's insights, educate your end-users about the risks associated with certain browser extensions and promote best practices for extension usage.
• Monitor Chrome Web Store: Utilize CRXcavator to monitor the Chrome Web Store for new extensions that might pose a risk, or to keep track of updates to extensions already in use within your organization.
• Generate Reports: Use CRXcavator's reporting features to generate summaries of your browser extension security posture for compliance audits, management reviews, or internal security meetings.

Troubleshooting the first call

When performing your initial scan with CRXcavator, you might encounter issues. Here are common problems and their solutions:

• Issue: "Extension Not Found" or "Invalid ID/URL"
  • Cause: Incorrect extension ID or URL provided.
  • Solution: Double-check the extension ID directly from the Chrome Web Store URL or by enabling "Developer mode" in chrome://extensions/. Ensure the URL is the direct link to the extension's page in the Chrome Web Store.
• Issue: Scan Fails or Times Out
  • Cause: Network connectivity issues between CRXcavator and the Chrome Web Store, or the extension being analyzed is unusually large or complex.
  • Solution: Verify your organization's network allows outbound connections necessary for CRXcavator to access the Chrome Web Store. If the issue persists for a specific extension, it might be an isolated problem with that extension's availability or structure. Try a simpler, well-known extension first. If continuous, contact Rapid7 support.
• Issue: Login Problems
  • Cause: Incorrect credentials, locked account, or network access restrictions.
  • Solution: Verify your username and password. If you've forgotten your password, use the "Forgot Password" link on the login page. If your account is locked, contact your internal IT administrator or Rapid7 support. Ensure your network allows access to the CRXcavator web portal URL.
• Issue: Inaccurate or Incomplete Scan Results
  • Cause: This is less common for a first scan but could indicate a misunderstanding of CRXcavator's capabilities or a specific edge case.
  • Solution: Review the CRXcavator documentation to understand how different risk factors are assessed. If you believe results are genuinely incorrect, gather details and contact Rapid7 support for clarification.
• General Troubleshooting Tip: For any persistent issues, consult the official CRXcavator documentation or contact Rapid7's technical support. Provide them with specific details, including the extension ID/URL, timestamps of the issue, and any error messages received.