Netskope Extension Risk

Detail view · rubric v3.6
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Sound Booster – Max Volume & Deep Bass

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Risk Score
4.37
Risk Level: Medium
Recommendation: 🟡 MEDIUM RISK — review
Category Entertainment
Installs 100,000
Rating 4.6
Last updated 2026-08-12
Manifest version MV3
CSP present ❌ no
Developer mildred567guy@gmail.com
Verified publisher ❌ no
Featured by Google ✅ yes
Privacy policy link
Web Store open ↗

Top Risks

  • Privacy policy is Google's generic policy; not scoped to this extension — admits data collection and 3rd-party sharing.
  • Free-webmail developer (gmail) with no verified business; numbered-alias pattern (mildred567guy).
  • Five medium-severity jQuery CVEs (XSS) in bundled libs below fixed_in version, no CSP amplifies risk.
  • install_url_hijack opens 3rd-party URL on install; external JS host sound-pro.net unverified.
  • Content scripts injected on <all_urls> combined with tabCapture creates broad audio/page capture surface.

Evidence

  • free_webmail_developer store Developer email mildred567guy@gmail.com — free webmail, numbered alias, no business domain.
  • privacy_policy_generic_google store Privacy URL is myaccount.google.com/privacypolicy — Google's own policy, not scoped to this extension.
  • install_url_hijack manifest install_url_hijack=true; extension opens 3rd-party URL on install (target undisclosed).
  • external_js_host crx js_external_hosts: ['sound-pro.net'] — unverified external domain serves JS.
  • cve_jquery_xss crx 5 medium CVEs across jquery@3.4.1 and 3.2.1 (CVE-2020-11022/23, CVE-2019-11358); not fixed.
  • no_csp manifest csp_present=false; MV3 default applies but no explicit CSP; amplifies jQuery XSS risk.
  • host_permissions_all_urls manifest <all_urls> host permission + content_scripts on all URLs; broad page access.
  • is_featured_by_google store Extension carries Google Featured badge, partially offsetting reputation concerns.

CVE Exposures (5)

CVELibrarySeverity Fixed inSummary
CVE-2020-11022 jquery@3.4.1 moderate 3.5.0 Potential XSS vulnerability in jQuery
CVE-2020-11023 jquery@3.4.1 moderate 3.5.0 Potential XSS vulnerability in jQuery
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

Permissions Breakdown

  • tabCapture high Captures audio/video from active tabs; core to stated function but high-capability.
  • offscreen medium Enables background document for audio processing; out-of-view execution surface.
  • storage low Local settings persistence; standard low-risk permission.
  • <all_urls> (host) high Content scripts injected into every page; broad reach paired with tabCapture.

Pillar Scores

Permissions5.50
Reputation7.50
Network2.00
Webstore5.00
Maintenance0.00
Privacy10.00
Code Quality2.00
CVE Exposure5.25

Bookkeeping

Rubric v3.6
Scored at 2026-08-28 07:47
Listing SHA ebcb02fe2a05…
Force block — not fired
Score recovered no
Elapsed