Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Speeding Muscle Car Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page; combined with 'search' permission enables search-monetization.
• Uninstall and install URL hijacks redirect to gameograf.com with UTM tracking — traffic-monetization pattern.
• No CSP on MV3 extension with innerHTML DOM-XSS sinks in popup.js and calendar.js.
• Developer name missing; low install count (21) limits trust signals.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new tab.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install
• no_csp manifest content_security_policy is null; MV3 default CSP applies but no explicit hardening.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js — DOM-XSS risk without CSP.
• search_permission manifest 'search' permission declared alongside newtab override — monetization cluster signal.
• developer_name_missing store developer_name is empty string; verified_publisher badge present but no display name.
• verified_publisher store Extension carries verified_publisher=true for gameograf.com; domain resolves, not throwaway.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Speeding Muscle Car Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.88 -> 5.38 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search provider; paired with newtab override raises search-monetization risk.
• chrome_url_overrides.newtab medium Replaces every new tab page — core monetization surface for wallpaper/NewTab shells.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.

Pillar Scores

Bookkeeping