Netskope Extension Risk

Detail view · rubric v3.6
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EnVimassa

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Risk Score
5.37
Risk Level: Medium
Recommendation: 🟡 MEDIUM RISK — review
Category Productivity
Installs 92
Rating 4.7
Last updated 2026-02-28 (6 months ago)
Manifest version MV3
CSP present ❌ no
Developer contato@extensao.store
Verified publisher ❌ no
Featured by Google ❌ no
Privacy policy link
Web Store open ↗

Top Risks

  • Uninstall URL hijack active: extension redirects on uninstall to track/monetize uninstalls.
  • Privacy policy is Google's own policy — not scoped to this extension; admits data collection and 3rd-party sharing.
  • WhatsApp brand impersonation: dev does not own WhatsApp; confirmed_owner=false.
  • Content script on WhatsApp Web can read all chat messages; 10 external wascript.com.br endpoints contacted.
  • function_constructor (new Function) + innerHTML DOM-XSS sink in injected scripts with no CSP.

Evidence

  • uninstall_url_hijack manifest chrome.runtime.setUninstallURL() set; uninstall_url_target=null but hijack confirmed true.
  • install_url_hijack manifest onInstalled opens https://web.whatsapp.com — 3rd-party redirect on install.
  • brand_impersonation store brand_mention.is_impersonation=true for WhatsApp; developer domain extensao.store is not Meta/WhatsApp.
  • generic_privacy_policy store Privacy URL is Google Account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
  • external_hosts_volume crx 10 distinct wascript.com.br subdomains plus generativelanguage.googleapis.com and mail.google.com contacted.
  • code_quality_function_constructor crx new Function() constructor found in injected content script — arbitrary code execution risk.
  • no_csp manifest content_security_policy is null; MV3 default applies but csp_present=false increases DOM-sink risk.
  • reputation_no_verified_publisher store Developer 'wspd' email at extensao.store; not verified, not featured, no recognised org.

Permissions Breakdown

  • unlimitedStorage low Allows unlimited local storage; low direct harm but enables large data caching.
  • storage low Standard local key-value storage; low risk in isolation.
  • alarms low Scheduled tasks; minimal risk on its own.
  • tabs medium Can read tab URLs and titles; moderate privacy exposure.
  • content_scripts: https://web.whatsapp.com/* medium Injects code into WhatsApp Web; can read/modify all messages and UI.

Pillar Scores

Permissions2.50
Reputation7.00
Network2.50
Webstore8.00
Maintenance1.50
Privacy10.00
Code Quality4.50
CVE Exposure0.00

Bookkeeping

Rubric v3.6
Scored at 2026-08-31 04:37
Listing SHA 00e594c90ff4…
Force block — not fired
Score recovered no
Elapsed