Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Kuromi Skeleton Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with search override — classic monetization shell, replaces browser new-tab for all sessions.
• Privacy policy is Google's own policy (myaccount.google.com) — not scoped to this extension; data_collection+third_party_sharing admitted without extension context.
• Uninstall and install URL hijack both present — redirects to developer marketing pages on lifecycle events.
• No CSP declared (MV3 default enforced, but two innerHTML DOM-XSS sinks found with no explicit policy).

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces new tab on every open.
• uninstall_url_hijack crx setUninstallURL targets 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 store Privacy URL is Google account policy (myaccount.google.com); scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx Two innerHTML assignments from variables in popup.js and calendar.js — DOM-XSS risk with no CSP.
• no_developer_name store developer_name field is empty string; no 'Offered by' display name despite verified_publisher=true.
• search_override manifest permissions includes 'search'; combined with newtab override standard monetization pattern.
• verified_publisher store verified_publisher=true; developer domain gameograf.com resolves and is not throwaway — partial trust signal.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Kuromi Skeleton Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.18 -> 7.68 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding default search behavior; paired with newtab override increases monetization risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer-controlled API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new tab page — primary monetization vector for this category.

Pillar Scores

Bookkeeping