Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Allah & Crescent Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — does not scope data collection to this extension; effectively discloses 3rd-party sharing.
• NewTab override + install/uninstall URL hijacking: monetization-shell pattern on every new tab.
• No CSP declared (MV3 default only) with innerHTML sinks in popup.js and calendar.js — DOM-XSS risk.
• No developer name listed; verified publisher reduces but does not eliminate identity accountability gap.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab for all users.
• install_url_hijack manifest onInstalled opens https://gameograf.com with UTM tracking params — install hijack confirmed.
• uninstall_url_hijack manifest setUninstallURL targets https://gameograf.com with UTM params — uninstall hijack confirmed.
• privacy_policy_generic api Policy URL is Google's own privacy policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js with no CSP — DOM-XSS exposure.
• no_csp manifest content_security_policy is null; no explicit CSP declared on MV3 extension.
• verified_publisher store verified_publisher=true on gameograf.com which resolves; partial reputation credit applied.
• no_developer_name store developer_name is empty string; identity accountability reduced despite verified publisher.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Allah & Crescent Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.41 -> 7.91 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Search API; medium risk for a NewTab extension that may redirect queries.
• chrome_url_overrides.newtab high Replaces every new tab — high reach, monetization surface, scope-mismatch risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.

Pillar Scores

Bookkeeping