Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Yoichi Isagi Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — does not scope to this extension, admits data collection and 3rd-party sharing (+10.0 privacy).
• NewTab override + search permission creates search-hijack / monetization surface.
• Uninstall URL hijack routes users to gameograf.com marketing page.
• Install URL hijack opens 3rd-party URL on install.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces browser new-tab page.
• uninstall_url_hijack crx setUninstallURL targets gameograf.com UTM link — monetization/tracking on uninstall.
• install_url_hijack crx onInstalled opens gameograf.com UTM link — install-event redirect to 3rd party.
• generic_privacy_policy store Privacy URL is Google's own account policy (myaccount.google.com) — not scoped to this extension.
• no_developer_name store developer_name is empty string — no 'Offered by' identity.
• dom_xss_sinks crx Two innerHTML-from-variable sinks in popup.js and calendar.js; no CSP present to mitigate.
• no_csp manifest content_security_policy is null — no CSP declared on MV3 extension.
• verified_publisher store Verified publisher badge present for gameograf.com; domain resolves and not throwaway.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Yoichi Isagi Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.13 -> 7.63 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Grants access to search engine integration; combined with newtab override, enables search hijack.
• chrome_url_overrides.newtab medium Replaces new-tab page — primary monetization surface for this category.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.

Pillar Scores

Bookkeeping