Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Lofi Girl Rumi Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Google's generic privacy policy used — does not disclose what THIS extension collects; scores as non-scoped.
• New-tab override with search permission = classic search-monetization shell pattern.
• Uninstall and install URL hijacks redirect users to gameograf.com tracking URLs.
• No developer name listed; privacy policy is Google's own policy with no extension-specific scope.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab, high-reach monetization surface.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=lofi&utm_medium=install
• generic_privacy_policy store Privacy policy is Google's own account policy (myaccount.google.com); scope_extension=false, data_collection=true, third_party_sharing=true → +10.0 privacy.
• no_developer_name store developer_name is empty string; reduces accountability.
• dom_xss_sink_no_csp crx innerHTML user-controlled in popup.js and calendar.js; csp_present=false → elevated DOM-XSS risk.
• search_permission_newtab manifest search permission + newtab override = search-monetization pattern per rubric.
• verified_publisher store verified_publisher=true for gameograf.com; domain resolves, not throwaway — partial trust mitigation.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Lofi Girl Rumi Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.41 -> 7.91 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying browser search; combined with newtab override creates search-monetization surface.
• host_permissions: https://api.gameograf.com/* medium Scoped to dev-controlled API domain; enables data exfil to operator backend.
• chrome_url_overrides.newtab high Replaces every new tab — high-traffic monetization vector, per-rule scored as MEDIUM+2.

Pillar Scores

Bookkeeping