Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Kuromi Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — not scoped to this extension, admits data collection and 3rd-party sharing (D rule: +10).
• NewTab override with install/uninstall URL hijack — classic monetization shell pattern.
• Uninstall URL hijack confirmed: redirects to gameograf.com with UTM tracking parameters.
• Install URL hijack confirmed: opens gameograf.com on install with UTM campaign tracking.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new-tab page.
• uninstall_url_hijack crx setUninstallURL points to gameograf.com with UTM parameters.
• install_url_hijack crx onInstalled opens gameograf.com with UTM install campaign parameters.
• privacy_policy_generic api Policy URL is Google's own account privacy page — scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js with no CSP; DOM-XSS risk.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• verified_publisher_featured store Extension carries both verified_publisher and is_featured_by_google badges.
• no_developer_name store developer_name field is empty string in listing metadata.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Kuromi Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.53 -> 7.03 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search provider; medium risk for a NewTab extension.
• 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 vector for this category.

Pillar Scores

Bookkeeping