Top Risks

• Google's generic privacy policy used — not scoped to this extension; admits data collection and 3rd-party sharing.
• NewTab override replaces every new tab with monetization-linked page; install/uninstall URL hijack confirmed.
• Uninstall URL hijack redirects to gameograf.com with UTM tracking on every uninstall.
• Two innerHTML DOM-XSS sinks found (popup.js, calendar.js) with no CSP to mitigate.
• No developer name listed; low install count (281) with high-reach newtab capability.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new tab for all users.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=gameograf — 3rd-party tracking on uninstall.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install — 3rd-party URL on install.
• generic_privacy_policy store Privacy policy is Google's own policy (myaccount.google.com) — scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML sinks in popup.js and calendar.js with no CSP; DOM-XSS risk present.
• no_csp manifest content_security_policy is null; MV3 default CSP applies but no explicit restriction on connect/script.
• verified_publisher_featured store Extension is verified_publisher and featured by Google — discounts applied but capped due to generic policy.
• no_developer_name store developer_name is empty string; accountability reduced despite verified publisher badge.

Permissions Breakdown

• search medium Can manipulate search provider; medium-risk when combined with newtab override.
• chrome_url_overrides.newtab high Replaces every new tab — high-reach monetization surface, scored as HIGH per v2 calibration.
• host_permissions: https://api.gameograf.com/* low Scoped to dev's own API domain; low blast radius.

Pillar Scores

Bookkeeping