Netskope Extension Risk

Detail view · rubric v3.6
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Note Anywhere

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Risk Score
4.34
Risk Level: Medium
Recommendation: 🟡 MEDIUM RISK — review
Category Productivity
Installs 100,000
Rating 3.9
Last updated 2026-04-10 (2 months ago)
Manifest version MV3
CSP present ✅ yes
Developer william@myatoms.io
Verified publisher ❌ no
Featured by Google ✅ yes
Privacy policy link
Web Store open ↗

Top Risks

  • Privacy policy is Google's generic account policy — not scoped to this extension at all; data practices entirely opaque.
  • Broad host permissions (http://*/*, https://*/*) with content scripts on all pages enable full page read/write.
  • Uninstall URL hijack detected — extension registers a third-party URL on uninstall.
  • dom_sink_innerhtml_userctrl in contentScript.bundle.js combined with all-sites content script is a DOM-XSS risk.
  • new Function() constructor in jscolor.js enables arbitrary code execution from parsed input.

Evidence

  • broad_host_access manifest host_permissions and content_scripts both cover http://* and https://* — full page access on every site.
  • privacy_policy_not_scoped store Privacy URL resolves to Google account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
  • uninstall_url_hijack crx uninstall_url_hijack=true; target not captured but pattern matches monetization/tracking redirect.
  • dom_sink_innerhtml_userctrl crx innerHTML set from variable in contentScript.bundle.js; CSP present but DOM-XSS sink still exploitable via page content.
  • function_constructor crx new Function() in jscolor.js used to parse color config strings — arbitrary code path if input is attacker-controlled.
  • featured_by_google store Extension carries Google Featured badge — partial trust signal offsetting some reputation risk.
  • js_external_hosts crx References 5 external hosts: beta.myatoms.io, browser.google.com, jscolor.com, odvarko.cz, www.gnu.org.
  • no_cve_findings crx cve_findings_raw empty; no known-vulnerable bundled libraries detected.

Permissions Breakdown

  • tabs medium Can read tab URLs and metadata; medium risk on its own.
  • contextMenus low Adds right-click menu items; minimal data access.
  • alarms low Schedules background tasks; no data access.
  • storage low Local extension storage; scoped to extension only.
  • http://*/* high Broad host access enables content script injection on all HTTP sites.
  • https://*/* high Broad host access enables content script injection on all HTTPS sites.

Pillar Scores

Permissions4.50
Reputation4.50
Network2.00
Webstore4.50
Maintenance0.00
Privacy10.00
Code Quality4.50
CVE Exposure0.00

Bookkeeping

Rubric v3.6
Scored at 2026-06-16 07:21
Listing SHA c991765ccc7e…
Force block — not fired
Score recovered no
Elapsed 25.4s