Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Naruto Chibi Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's own generic policy — not scoped to this extension; admits data collection and 3rd-party sharing (D clause: +10.0).
• NewTab override with install+uninstall URL hijacks to gameograf.com UTM links — classic monetization shell pattern.
• Two innerHTML DOM-XSS sinks without CSP amplify code-quality risk.
• No developer name listed and empty manifest_name/description strings reduce accountability.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; replaces new-tab with wallpaper/monetization surface.
• install_url_hijack manifest onInstalled opens https://gameograf.com/?utm_source=install — 3rd-party UTM redirect.
• uninstall_url_hijack manifest setUninstallURL to https://gameograf.com/?utm_source=gameograf — 3rd-party UTM redirect.
• privacy_policy_generic api Policy URL is Google's own account privacy page; scope_extension=false, data_collection=true, third_party_sharing=true → D clause +10.
• dom_xss_sinks crx innerHTML assignments in popup.js and calendar.js without CSP; DOM-XSS risk.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening; amplifies innerHTML risk.
• no_developer_name store developer_name is empty string; reduced accountability despite verified_publisher=true.
• verified_publisher store verified_publisher=true but discount capped due to generic policy + monetization URL hijacks (v3.5E).
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Naruto Chibi Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.23 -> 7.73 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying and potentially overriding search provider; newtab override compounds this.
• host_permissions: https://api.gameograf.com/* low Scoped to dev's own API domain; low blast radius.
• chrome_url_overrides.newtab medium Replaces new-tab page; high user-facing surface, monetization/redirect risk.

Pillar Scores

Bookkeeping