Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Monster Hunter Zinogre Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall/install URL hijack — classic monetization shell pattern.
• Privacy policy is Google's generic policy, not scoped to this extension; data_collection+third_party_sharing admitted.
• No developer name listed; low-install NewTab extension with newtab+search override raises shell-pattern concern.
• innerHTML DOM-XSS sinks in calendar.js and popup.js with no CSP on MV3 (csp_present==false).

Evidence

• uninstall_url_hijack manifest setUninstallURL → https://gameograf.com/?utm_source=gameograf&utm_medium=link&utm_campaign=bg&utm_content=uninstall
• install_url_hijack manifest onInstalled opens https://gameograf.com/?utm_source=install&utm_medium=link&utm_campaign=bg&utm_content=install
• generic_privacy_policy store Privacy URL is Google's account policy (scope_extension=false, data_collection=true, third_party_sharing=true).
• newtab_override manifest chrome_url_overrides.newtab = newtab.html; wallpaper extension overrides every new tab.
• dom_xss_sink crx innerHTML sinks in calendar.js and popup.js with no CSP — DOM-XSS risk.
• no_developer_name store developer_name is empty string; reduces accountability.
• broad_js_external_hosts crx 12 external hosts (Google services, youtube.com) far exceeds wallpaper/LiveWallpaper function.
• no_csp manifest content_security_policy is null (csp_present=false) on MV3 extension with XSS sinks.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Monster Hunter Zinogre Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.43 -> 6.93 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search provider; medium impact on user browsing.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new tab page — high-frequency touchpoint, monetization vector.

Pillar Scores

Bookkeeping