Netskope Extension Risk

Detail view · rubric v3.6
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PDF Viewer

jdlkkmamiaikhfampledjnhhkbeifokk
Risk Score
6.22
Risk Level: High
Recommendation: 🟠 HIGH RISK — review
Category ReaderMode
Installs 200,000
Rating 3.8
Last updated 2026-09-01 (1 months ago)
Manifest version MV3
CSP present ❌ no
Developer jgarrettk13@gmail.com
Verified publisher ✅ yes
Featured by Google ❌ no
Privacy policy link
Web Store open ↗

Top Risks

  • THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Palant affiliate fraud cluster (name unconfirmed) [adware] (+2.0, capped).
  • Gmail developer with no dev name; free-webmail identity raises accountability concerns.
  • webRequest + broad host_permissions (http/https all URLs) enables full request interception.
  • eval() of a variable in pdf.sandbox.js is a high-risk code pattern even in a PDF engine context.
  • No CSP present (MV3 so no +2 network penalty, but eval findings amplify code risk).

Evidence

  • developer_email_free_webmail store jgarrettk13@gmail.com — free-webmail, no business domain, developer_name empty.
  • verified_publisher_and_featured store verified_publisher=true AND is_featured_by_google=true; applies reputation discount.
  • broad_host_permissions manifest host_permissions include https://* and http://* — all sites covered.
  • eval_user_input crx pdf.sandbox.js: globalThis.eval(code) on a variable — direct eval risk.
  • function_constructor crx pdf.js and pdf.worker.js use new Function() — typical in PDF.js but still raises code quality score.
  • no_csp manifest content_security_policy is null; no mitigating CSP for eval findings.
  • privacy_policy_retention_missing api Privacy policy fetched; scope_extension=true, data_collection=true, retention=false, third_party_silence=true.
  • js_external_hosts crx Contacts chrome.google.com, mozilla.github.io, www.apache.org — all reputable open-source hosts.
  • threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Palant affiliate fraud cluster (name unconfirmed) [adware]; score 4.22 -> 6.22 (+2.0 cap 2.5).

Permissions Breakdown

  • webRequest high Can intercept and observe all HTTP/S requests across all URLs — high surveillance capability.
  • webNavigation medium Monitors browser navigation events; useful for PDF detection but exposes browsing patterns.
  • storage low Stores extension settings locally; low standalone risk.
  • contextMenus low Adds right-click menu entries; minimal risk.
  • https://*/ high Broad host access to all HTTPS sites; combined with webRequest creates wide surveillance surface.
  • http://*/ high Broad host access to all HTTP sites; same concern as https.

Pillar Scores

Permissions6.30
Reputation6.50
Network2.00
Webstore1.50
Maintenance1.50
Privacy2.00
Code Quality5.50
CVE Exposure0.00

Bookkeeping

Rubric v3.6
Scored at 2026-11-03 09:52
Listing SHA 66d5a0785134…
Force block — not fired
Score recovered no
Elapsed 25.1s