Top Risks

• NewTab override + search override: controls user's default tab and search, prime monetization surface.
• Privacy policy is Google's own generic policy — not scoped to this extension; policy admits data collection and 3rd-party sharing (→ +10 privacy pillar).
• Uninstall URL hijack and install URL hijack redirect users to gameograf.com via UTM tracking on every install/uninstall.
• No CSP declared (MV3 but csp_present==false) + innerHTML DOM-XSS sink in popup.js.
• Developer name missing; 16 months since last update crosses stale threshold; low install count (135) for a newtab extension.

Evidence

• newtab_override manifest chrome_url_overrides.newtab='index.html'; replaces every new-tab page for all users.
• uninstall_url_hijack manifest setUninstallURL → https://gameograf.com/?utm_source=uninstall — 3rd-party UTM tracking.
• install_url_hijack manifest onInstalled opens https://gameograf.com/?utm_source=install — 3rd-party redirect on install.
• generic_privacy_policy store Privacy URL is Google's global policy (myaccount.google.com/privacypolicy); scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML assigned from variable in js/popup.js; no CSP to mitigate DOM-XSS risk.
• no_developer_name store developer_name is empty string; reduces accountability.
• stale_extension store 16 months since last update; maintenance pillar score 6.0.
• external_host_mlionltd_github_io crx js_external_hosts includes mlionltd.github.io — third-party GitHub Pages host not owned by developer.

Permissions Breakdown

• search medium Allows overriding default search provider; medium risk on its own.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces every new-tab page; monetization surface, captures all new-tab interactions.

Pillar Scores

Bookkeeping