Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Cat in Autumn Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall/install URL hijack to gameograf.com — classic monetization shell pattern.
• Privacy policy is Google's own generic policy (not scoped to this extension); admits data collection and 3rd-party sharing — scores maximum privacy risk.
• No CSP on MV3 extension with innerHTML DOM-XSS sinks in popup.js and calendar.js.
• No developer name listed; verified publisher discount limited due to generic privacy policy.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html; monetization/NewTab shell pattern.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=gameograf&utm_medium=link&utm_campaign=bg&utm_content=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install&utm_medium=link&utm_campaign=bg&utm_content=install
• generic_privacy_policy api Policy URL is myaccount.google.com/privacypolicy — Google's generic policy, not scoped to this extension.
• dom_xss_sink crx innerHTML used with variable content in js/popup.js and js/calendar.js; no CSP present.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit CSP hardening.
• verified_publisher store Verified publisher badge present (support@gameograf.com); partial reputation credit.
• no_developer_name store developer_name is empty string; reduces accountability signal.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Cat in Autumn Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.21 -> 7.71 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulating search provider behavior; medium risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited surface.
• chrome_url_overrides.newtab medium Replaces new-tab page; high reach, monetization surface per rubric.

Pillar Scores

Bookkeeping