Netskope Extension Risk

Detail view · rubric v3.6
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Mahjong Deluxe

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Risk Score
2.78
Risk Level: Low
Recommendation: 🟢 LOW RISK — review
Category Entertainment
Installs 237
Rating 5.0
Last updated 2026-04-16 (4 months ago)
Manifest version MV3
CSP present ✅ yes
Developer nadejdinv@gmail.com
Verified publisher ❌ no
Featured by Google ❌ no
Privacy policy link
Web Store open ↗

Top Risks

  • Uninstall and install URL hijack flagged — redirects on install/uninstall events to internal/external pages.
  • Privacy policy on CDN subdomain (cdn.cloudapi.stream), not scoped to this extension; third-party sharing admitted without data collection disclosure.
  • jquery@3.2.1 bundles 3 medium CVEs (XSS) unfixed; library below 3.5.0 threshold.
  • Free-webmail developer (gmail), no developer name, no verified publisher — low accountability.
  • Sandbox CSP allows unsafe-inline and unsafe-eval, weakening in-extension sandbox security.

Evidence

  • install_url_hijack crx onInstalled opens popup/index.html — install_url_hijack flagged true.
  • uninstall_url_hijack crx uninstall_url_hijack flagged true; target null but hook present.
  • jquery_cve crx jquery@3.2.1 has 3 medium CVEs: CVE-2019-11358, CVE-2020-11022, CVE-2020-11023; fixed_in 3.5.0.
  • privacy_policy_unscoped store Policy fetched from cdn.cloudapi.stream; scope_extension=false, data_collection=false, third_party_sharing=true.
  • developer_identity store Developer email is free-webmail gmail.com; no developer name; no verified publisher badge.
  • sandbox_csp_weak crx Sandbox CSP allows unsafe-inline and unsafe-eval on script-src, weakening sandbox isolation.
  • js_external_hosts crx 10 external JS hosts referenced: bnjmnt4n.now.sh, cloudapi.stream, createjs.com, github.com, goo.gl, others.
  • no_permissions crx No declared permissions or host_permissions — extension is a self-contained game with no browser API access.

CVE Exposures (3)

CVELibrarySeverity Fixed inSummary
CVE-2019-11358 jquery@3.2.1 moderate 3.4.0 XSS in jQuery as used in Drupal, Backdrop CMS, and other products
CVE-2020-11022 jquery@3.2.1 moderate 3.5.0 Potential XSS vulnerability in jQuery
CVE-2020-11023 jquery@3.2.1 moderate 3.5.0 Potential XSS vulnerability in jQuery

Pillar Scores

Permissions0.00
Reputation7.00
Network0.00
Webstore6.00
Maintenance1.50
Privacy9.00
Code Quality0.00
CVE Exposure3.00

Bookkeeping

Rubric v3.6
Scored at 2026-08-28 09:00
Listing SHA 5b3b8ade711f…
Force block — not fired
Score recovered no
Elapsed