Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Girl on the Beach at Night Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page with developer-controlled content at high reach.
• Privacy policy is Google's generic account policy — not scoped to this extension; admits data collection and 3rd-party sharing.
• Uninstall and install URL hijacks track user lifecycle via UTM params to gameograf.com.
• Two unguarded innerHTML sinks (DOM-XSS risk) with no CSP to mitigate exploitation.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — overrides every new-tab page for all 129 users.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install (3rd-party tracking).
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=lofi&utm_medium=install.
• generic_privacy_policy store Policy URL is Google's account privacy policy (479 KB), not scoped to this extension; data_collection+third_party_sharing=true.
• dom_xss_sink_no_csp crx innerHTML user-controlled in popup.js and calendar.js with csp_present=false — DOM-XSS vector.
• no_developer_name store developer_name is empty string; only email support@gameograf.com available.
• newtab_monetization_shape manifest search permission + newtab override + uninstall/install URL hijacks = classic traffic-monetization cluster.
• verified_publisher store verified_publisher=true but no featured badge; discount capped due to generic policy and monetization shape.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Girl on the Beach at Night Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.84 -> 7.34 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying browser search engine; paired with newtab override elevates risk.
• host_permissions: https://api.gameograf.com/* medium Scoped to dev domain; enables data exfil to own server from newtab context.
• chrome_url_overrides.newtab medium Replaces every new-tab page; high reach, monetization vector.

Pillar Scores

Bookkeeping