Browser Boost - Extra Tools for Chrome
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Risk Score
6.35
Risk Level:
High
Recommendation:
🚫 BLOCK
Top Risks
- HIGH permissions (privacy, tabCapture, declarativeNetRequestWithHostAccess) with <all_urls> host access
- No Content Security Policy with DOM-XSS sink detected in popup.bundle.js
- Free webmail developer (gmail.com) with no verified publisher status
- 18 months since last update indicates potential abandonment
- Small install base (1,000) with high-tier permissions creates tail attack surface
Evidence
- permissions manifest tabCapture, privacy, declarativeNetRequestWithHostAccess, <all_urls>
- no_csp crx content_security_policy is null with dom_sink_innerhtml_userctrl finding
- developer_identity store Free gmail developer, not verified, no business website
- staleness store 18 months since update, install_perm_anomaly.tail_attack_surface=true
- dom_xss_sink crx innerHTML assignment from variable in popup.bundle.js (React 16.13.1)
- privacy_policy api Scoped policy found but retention not disclosed, third_party_silence=true
Permissions Breakdown
- tabCapture high Can capture tab content including audio/video streams
- privacy high Can modify browser privacy settings
- webNavigation medium Can monitor navigation events across all sites
- scripting medium Can inject scripts into web pages
- downloads medium Can download files to user's system
- declarativeNetRequestWithHostAccess high Can intercept and modify network requests on all URLs
- offscreen low Can run code in offscreen documents
- storage low Local storage access
- contextMenus low Can add context menu items
- <all_urls> high Broad host access to all websites
Pillar Scores
Permissions7.50
Reputation7.50
Network4.50
Webstore1.50
Maintenance6.00
Privacy1.00
Code Quality2.00
CVE Exposure0.00
Bookkeeping
Rubric v3.6
Scored at 2026-10-23 05:28
Listing SHA
cf2e3a5be4df…
Force block
— not fired
Score recovered
no
Elapsed
—