Netskope Extension Risk

Detail view · rubric v3.6
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All Netflix Categories

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Risk Score
5.08
Risk Level: Medium
Recommendation: 🟡 MEDIUM RISK — review
Category Entertainment
Installs 10,000
Rating 4.1
Last updated 2024-05-23 (27 months ago)
Manifest version MV3
CSP present ✅ yes
Developer support@simkl.com
Verified publisher ❌ no
Featured by Google ❌ no
Privacy policy link
Web Store open ↗

Top Risks

  • Privacy policy fetch failed — treated as unfetched; privacy score maxes out at 10.0.
  • Brand impersonation: extension title/description prominently references Netflix without confirmed ownership.
  • 25 months since last update — stale, approaching triple-stale threshold.
  • DOM-XSS sink (innerHTML with user-controlled variable) found in popup.js.
  • Developer name absent from listing; identity relies solely on simkl.com email.

Evidence

  • brand_impersonation store brand_mention.is_impersonation=true; brands_mentioned=['netflix']; confirmed_owner=false.
  • privacy_policy_fetch_failed api privacy_policy_classification.fetched=false (fetch_error:HTTPError); scored as +10.0.
  • maintenance_stale store months_since_update=25; >24mo band +8.5; installs 20k <10k zombie threshold not met.
  • dom_xss_sink crx js/popup.js: innerHTML assigned from variable; CSP present so base +0.5 not amplified.
  • no_developer_name store developer_name is empty string; +1.0 reputation penalty applied.
  • cve_none crx cve_findings_raw=[]; jquery 3.7.1 bundled with no known CVEs; CVE pillar=0.0.
  • network_clean crx bad_host_hits=[], monetization_hits=[], affiliate_hits=[]; js_external_hosts limited to simkl.com and www.netflix.com.
  • operator_cluster_singleton api sibling_count=0; no cluster risk.

Permissions Breakdown

  • storage low Stores local preferences; no cross-origin or sensitive data access.

Pillar Scores

Permissions0.30
Reputation7.00
Network0.00
Webstore4.50
Maintenance8.50
Privacy10.00
Code Quality0.50
CVE Exposure0.00

Scoring History

sssiedn2a2a445adp727562726963xsx 5.36 Medium review 2026-08-27
v3.6 5.08 Medium review 2026-06-16

Bookkeeping

Rubric v3.6
Scored at 2026-06-16 07:34
Listing SHA cb97502c5585…
Force block — not fired
Score recovered no
Elapsed 19.2s