Netskope Extension Risk

Detail view · rubric v3.6
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Delete Facebook™ Posts, Photos, etc.

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Risk Score
6.98
Risk Level: High
Recommendation: 🟠 HIGH RISK — review
Category Productivity
Installs 20,000
Rating 3.7
Last updated
Manifest version MV3
CSP present ❌ no
Developer software@sysar.ch
Verified publisher ✅ yes
Featured by Google ✅ yes
Privacy policy link
Web Store open ↗

Top Risks

  • Privacy policy URL unfetchable (HTTP error) — no verifiable data-handling disclosure; treated as no policy.
  • jQuery 1.9.1 bundled with 3 medium CVEs (XSS); no CSP amplifies exploitability on FB/TikTok/Twitter pages.
  • last_updated missing — maintenance unknown; stale fingerprint with CVEs scores max maintenance penalty.
  • webRequest + broad social-platform host permissions (FB, Twitter, TikTok) enable passive session surveillance.
  • Brand impersonation: Facebook™ trademark in name; developer is not a confirmed Facebook owner.

Evidence

  • privacy_policy_unfetchable api privacy_policy_classification.fetched==false (fetch_error:HTTPError); scored as no policy (+10.0 privacy).
  • cve_jquery_1.9.1_3x_medium crx CVE-2015-9251, CVE-2019-11358, CVE-2020-11023 in jquery@1.9.1; no CSP present; ×1.5 CVE amplifier applied.
  • no_csp_mv3 manifest content_security_policy is null; no CSP boosts CVE XSS risk and jquery+no-CSP code quality penalty.
  • last_updated_missing store months_since_update is null; treated as >36 months for maintenance pillar (max score 10.0).
  • brand_impersonation_facebook store brand_mention.is_impersonation==true; confirmed_owner==false; Facebook™ trademark in title.
  • webrequest_broad_social_hosts manifest webRequest declared; host_permissions cover facebook.com, twitter.com, x.com, tiktok.com.
  • install_url_hijack crx install_url_hijack==true; onInstalled opens external URL (target null but flag set).
  • no_developer_name store developer_name is empty string; reduces accountability.

CVE Exposures (3)

CVELibrarySeverity Fixed inSummary
CVE-2019-11358 jquery@1.9.1 moderate 3.4.0 XSS in jQuery as used in Drupal, Backdrop CMS, and other products
CVE-2020-11023 jquery@1.9.1 moderate 3.5.0 Potential XSS vulnerability in jQuery
CVE-2015-9251 jquery@1.9.1 moderate 1.12.2 Cross-Site Scripting (XSS) in jquery

Permissions Breakdown

  • activeTab low Scoped to current tab on user interaction only.
  • identity medium Can access OAuth identity tokens.
  • identity.email medium Reads the user's Google account email address.
  • storage low Local extension storage, low direct risk.
  • webRequest high Can observe all network requests on permitted hosts including FB/TikTok/Twitter.
  • declarativeNetRequest medium Can block/redirect network requests declaratively.
  • declarativeNetRequestFeedback medium Can read which declarative rules fired, leaking browsing metadata.
  • host: facebook.com/* high Full access to FB page content — credentials, messages, session tokens.
  • host: twitter.com/* / x.com/* high Full access to Twitter/X — broad social-platform reach.
  • host: tiktok.com/* high Full access to TikTok pages.
  • host: socialerase.net/* medium Developer-controlled backend; content-script + XHR to this host.
  • host: googleapis.com/* medium Google API calls, likely for identity/OAuth flow.

Pillar Scores

Permissions6.50
Reputation6.00
Network4.50
Webstore5.50
Maintenance10.00
Privacy10.00
Code Quality5.50
CVE Exposure4.50

Bookkeeping

Rubric v3.6
Scored at 2026-06-16 07:16
Listing SHA ecf2e7a37853…
Force block — not fired
Score recovered no
Elapsed 34.7s