Netskope Extension Risk

Detail view · rubric v3.6
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Sound Booster - Boost My Bass

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Risk Score
5.16
Risk Level: Medium
Recommendation: 🟡 MEDIUM RISK — review
Category Entertainment
Installs 100,000
Rating 4.8
Last updated 2026-04-13 (4 months ago)
Manifest version MV3
CSP present ❌ no
Developer terry44petit@gmail.com
Verified publisher ✅ yes
Featured by Google ✅ yes
Privacy policy link
Web Store open ↗

Top Risks

  • Privacy policy admits data collection and third-party sharing but is not scoped to this extension — scores maximum privacy risk.
  • tabCapture + scripting + <all_urls>: can capture audio/video from every tab and inject arbitrary code on every site.
  • Developer uses free Gmail address with no developer name — low accountability for a 100K-install extension.
  • new Function() constructor found in 4 JS files — dynamic code execution risk, albeit a common bundler pattern.
  • Verified/featured discounts applied but Gmail dev identity limits trust; no developer domain info available.

Evidence

  • privacy_policy_generic_with_3rd_party api Policy fetched but scope_extension=false, data_collection=true, third_party_sharing=true — triggers D (+10.0 privacy).
  • free_webmail_developer store Developer email terry44petit@gmail.com; no developer name listed; no verified business identity.
  • tabCapture_plus_all_urls manifest tabCapture with <all_urls> host permission and content_scripts on all URLs — high capability reach.
  • scripting_all_urls manifest scripting permission paired with <all_urls> enables arbitrary JS injection on every page.
  • function_constructor_4_files crx new Function() found in background.js, content.js, offscreen.js, popup.js — dynamic code execution.
  • verified_publisher_featured store Verified publisher + featured badge; discount capped due to Gmail identity concerns.
  • no_csp manifest content_security_policy is null; MV3 has strict default but no explicit CSP declared.
  • install_count_100k store 100,000 installs; broad reach amplifies any risk from high permissions.

Permissions Breakdown

  • storage low Stores user preferences locally.
  • tabCapture high Captures audio/video from tabs; broad surveillance capability.
  • offscreen low Used for audio processing off-screen; low standalone risk.
  • scripting high Injects scripts into pages; paired with <all_urls> is high risk.
  • tabs medium Reads tab URLs and metadata across all open tabs.
  • <all_urls> (host) high Grants access to every site visited; broad attack surface.
  • <all_urls> (content_scripts) high Content scripts run on every page automatically.

Pillar Scores

Permissions7.50
Reputation4.50
Network2.00
Webstore2.00
Maintenance1.50
Privacy10.00
Code Quality2.50
CVE Exposure0.00

Bookkeeping

Rubric v3.6
Scored at 2026-08-28 07:57
Listing SHA 9287fec71ae8…
Force block — not fired
Score recovered no
Elapsed