Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Nezuko Kamado Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override + search permission = search monetization shell; uninstall/install URL hijack to gameograf.com confirms monetization intent.
• Privacy policy is Google's generic account policy — not scoped to this extension; scores +10.0 under v3.5 rule D (fetched, not scoped, data_collection+third_party_sharing=true).
• Two innerHTML DOM-XSS sinks with no CSP present; no content security policy on MV3 raises code quality risk.
• No developer name listed; verified publisher exists but no 'Offered by' display name reduces accountability.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; replaces every new tab page.
• 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
• privacy_policy_generic api Policy URL is myaccount.google.com/privacypolicy; scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink_no_csp crx innerHTML assignments in popup.js and calendar.js; csp_present=false increases DOM-XSS exploitability.
• search_permission_newtab manifest 'search' permission combined with newtab override = search monetization surface.
• no_developer_name store developer_name is empty string; verified_publisher=true mitigates but accountability reduced.
• verified_publisher store verified_publisher=true; domain gameograf.com resolves, looks_throwaway=false.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Nezuko Kamado Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.30 -> 7.80 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search provider; combined with newtab override creates search monetization surface.
• chrome_url_overrides.newtab medium Replaces every new tab; primary vector for ad-monetization and search redirect in this category.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.

Pillar Scores

Bookkeeping