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NotebookLM Hub

Version 0.1.3 View in Chrome Web Store

Last scanned: about 5 hours ago

Extension Details

Developer: notebook-hub.com

Rating: 5.0 ★

Users: 13

Context-Aware Verdict

HIGH

Overall Risk

Trust Factors:

The extension has extremely limited adoption with only 13 users and appears to be newly released, making it difficult to establish trust through community validation. While it maintains a perfect 5.0 rating, this is based on an insufficient sample size to be meaningful. The developer domain "notebook-hub.com" lacks established reputation in the extension ecosystem, and the absence of detailed developer information raises transparency concerns.

Key Concerns:

The extension requests unnecessarily broad permissions for what appears to be a NotebookLM enhancement tool. The tabs permission allows comprehensive browser tab manipulation and information access, which seems excessive for a notebook utility. Host permissions span multiple sensitive domains including Google accounts and YouTube, creating potential attack vectors. The localhost permission (port 27123) suggests local server communication, which could bypass browser security measures. The combination of broad host access with powerful tab manipulation capabilities creates significant privacy and security risks.

Recommendations:

Given the high-risk profile and minimal user base, consider running this extension in a separate Chrome profile to isolate potential damage. Carefully evaluate whether the extension's functionality justifies the extensive permissions requested. Monitor the extension's behavior closely and consider alternatives with more established track records. If you must use it, regularly review what data it might be accessing and consider removing it when not actively needed. Wait for broader community adoption and reviews before trusting it with sensitive workflows.

Findings

HIGH

Broad Host Permissions

This extension has broad host permissions allowing it to access many or all websites. This could potentially be used to steal sensitive data or track browsing activity.

HIGH

High-Risk Permission: tabs

This extension has the tabs permission. Can access browser tab information and manipulate tabs. This could potentially be used maliciously to compromise security or privacy.

MEDIUM

Access to Sensitive Domains

This extension requests access to sensitive domains: https://notebooklm.google.com/*, https://accounts.google.com/*. Ensure you trust this extension with access to these sites.

MEDIUM

Medium-Risk Permission: activeTab

This extension has the activeTab permission. Can access the active tab when clicking the extension icon.

MEDIUM

Medium-Risk Permission: storage

This extension has the storage permission. Can store data locally.

Security Analysis Details

Required Permissions:

storage
sidePanel
scripting
tabs
activeTab

Host Permissions:

https://notebooklm.google.com/*
https://accounts.google.com/*
https://www.youtube.com/*
http://localhost:27123/*

Embedded URLs (32 total):

https://clients2.google.com/service/update2/crx	https://www.youtube.com/
https://notebooklm.google.com/	https://accounts.google.com/
https://example.com/article1	https://example.com/article2
https://notebooklm.google.com	https://youtu.be/
https://www.youtube.com	http://www.w3.org/2000/svg
http://www.phpied.com/rgb-color-parser-in-javascript/	http://www.myersdaily.org/joseph/javascript/md5.js
http://www.fpdf.org/en/script/script37.php	http://opensource.org/licenses/mit-license
https://www.cs.cmu.edu/~dst/Adobe/Gallery/anon21jul01-pdf-encryption.txt	https://github.com/foliojs/pdfkit/blob/master/lib/security.js
https://cdnjs.cloudflare.com/ajax/libs/pdfobject/2.1.1/pdfobject.min.js	http://www.w3.org/1999/02/22-rdf-syntax-ns#
http://jspdf.default.namespaceuri/	https://html2canvas.hertzen.com
https://hertzen.com	https://github.com/zloirock/core-js/blob/v3.49.0/LICENSE
https://github.com/zloirock/core-js	https://accounts.google.com/ListAccounts?json=standard&source=ogb&md=1&cc=1&mn=1&mo=1&gpsia=1&fwput=860&listPages=1&origin=https%3A%2F%2Fwww.google.com
https://accounts.google.com/ServiceLogin	http://www.w3.org/1998/Math/MathML
http://www.w3.org/1999/xhtml	https://api.notion.com/v1
https://reactjs.org/docs/error-decoder.html?invariant=	http://www.w3.org/1999/xlink
http://www.w3.org/XML/1998/namespace	https://github.com/pmndrs/zustand/discussions/1937

Raw Manifest

{
  "name": "__MSG_extensionName__",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "NotebookLM Hub"
  },
  "author": {
    "email": "dev@notebooklm-hub.example"
  },
  "version": "0.1.3",
  "background": {
    "type": "module",
    "service_worker": "service-worker-loader.js"
  },
  "options_ui": {
    "page": "src/options/index.html",
    "open_in_tab": true
  },
  "side_panel": {
    "default_path": "src/sidepanel/index.html"
  },
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "__MSG_extensionDescription__",
  "permissions": [
    "storage",
    "sidePanel",
    "scripting",
    "tabs",
    "activeTab"
  ],
  "default_locale": "en",
  "content_scripts": [
    {
      "js": [
        "assets/index.tsx-loader-DQFuX25U.js"
      ],
      "css": [],
      "run_at": "document_idle",
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "host_permissions": [
    "https://notebooklm.google.com/*",
    "https://accounts.google.com/*",
    "https://www.youtube.com/*",
    "http://localhost:27123/*"
  ],
  "manifest_version": 3,
  "minimum_chrome_version": "114",
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "resources": [
        "icons/*",
        "assets/messages-DnUvqtdC.js",
        "assets/index.tsx-COondaBY.js"
      ],
      "use_dynamic_url": false
    }
  ]
}

by ✦ Astarte

NotebookLM Hub

Extension Details

Context-Aware Verdict

Findings

Security Analysis Details

Required Permissions:

Host Permissions:

Embedded URLs (32 total):

Raw Manifest

Detections

Manifest Findings