Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Naruto Uzumaki Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab; install+uninstall URL hijack to gameograf.com for traffic monetization.
• Uninstall and install URL hijack both confirmed — classic traffic/affiliate funnel pattern.
• No CSP defined (MV3 default is strict but no explicit policy set); innerHTML sinks present in popup.js and calendar.js.
• Developer name field empty; no 'Offered by' display name despite verified_publisher flag.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; hijacks every new tab for all users.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=extension&utm_medium=install.
• dom_sink_innerhtml crx innerHTML assigned from variable in js/popup.js and js/calendar.js — DOM-XSS risk.
• no_developer_name store developer_name is empty string despite verified_publisher == true.
• verified_publisher store gameograf.com resolves, not throwaway, verified publisher badge present.
• privacy_policy_adequate api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• low_installs_newtab store Only 13 installs with NewTab override; low-adoption high-capability surface.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Naruto Uzumaki Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 3.02 -> 5.52 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Grants ability to affect search queries; relevant for NewTab overrides.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary monetization surface for this extension type.

Pillar Scores

Bookkeeping