Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Thor Live Wallpaper New Tab [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall URL hijack and install URL hijack — classic monetization shell pattern.
• No CSP declared (MV3) — innerHTML DOM-XSS sink in popup.js is unmitigated.
• Verified publisher but stale 15 months — discount capped per invariant 0c (months_since_update > 18 not met, but borderline).
• Privacy policy admits third-party sharing; extension contacts google.com from newtab context.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — NewTab category confirmed.
• uninstall_url_hijack crx setUninstallURL to gameograf.com with UTM params — webstore +3.0.
• install_url_hijack crx onInstalled opens gameograf.com with UTM params — webstore +2.0.
• no_csp manifest csp_present=false on MV3; +2.0 network per v2 rule, dom_sink elevated to +2.0.
• dom_sink_innerhtml crx popup.js assigns innerHTML from variable with no CSP guard — DOM-XSS risk.
• verified_publisher store Verified publisher badge present; -2.0 reputation but capped at floor 2.0.
• privacy_policy_scoped api Policy fetched, scoped, data_collection+retention+third_party_sharing all true — +1.0 retention covered.
• stale_15mo store 15 months since update — maintenance +6.0 (12-24mo band).
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Thor Live Wallpaper New Tab [adware] + malext.io malicious_extension_sentry; score 4.08 -> 6.58 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulating browser search; medium risk on its own.
• host_permission: https://api.gameograf.com/* low Scoped to dev-controlled API domain only.
• chrome_url_overrides.newtab medium Replaces new-tab page — standard for this category but increases monetization surface.

Pillar Scores

Bookkeeping