Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Spirited Away Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — not scoped to this extension, yet admits data collection and third-party sharing (+10.0 privacy).
• NewTab override with uninstall URL hijack and install URL hijack: classic search-monetization shell pattern (+2+3 webstore).
• No CSP present on MV3 extension with innerHTML DOM-XSS sink in popup.js.
• Developer name missing and no 'Offered by' display name increases accountability gap.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = index.html — replaces new-tab page entirely.
• uninstall_url_hijack crx setUninstallURL to gameograf.com with UTM tracking parameters.
• install_url_hijack crx onInstalled opens gameograf.com with UTM install tracking parameters.
• generic_privacy_policy store Privacy URL points to Google's own policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx js/popup.js: innerHTML assigned from variable without sanitization; no CSP to mitigate.
• external_host_unknown crx mlionltd.github.io listed in js_external_hosts — unknown third-party GitHub Pages domain.
• no_developer_name store developer_name is empty string; no 'Offered by' identity in listing.
• maintenance_stale store 14 months since last update — falls in 12-24mo band (+6.0 maintenance).
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Spirited Away Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.37 -> 7.87 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search queries; typical for NewTab monetization.
• host_permissions: https://api.gameograf.com/* low Scoped to developer-owned API domain only.
• chrome_url_overrides: newtab medium Replaces new-tab page; core vector for search monetization.

Pillar Scores

Bookkeeping