Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Totoro In The Rain Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — not scoped to this extension; collects/shares data per its own terms.
• NewTab override with uninstall URL hijack and install URL hijack — monetization shell pattern.
• DOM-XSS sinks (innerHTML) in popup.js and calendar.js with no CSP, raising XSS risk.
• No developer name listed; verified publisher but policy is a Google-hosted generic URL.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new-tab page.
• uninstall_url_hijack crx setUninstallURL points to https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=lofi&utm_medium=install
• generic_privacy_policy api Privacy URL 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 csp_present=false — DOM-XSS risk.
• no_csp manifest content_security_policy is null (MV3 default applies but no explicit hardening).
• verified_publisher store Developer gameograf.com verified; domain age 2050 days, resolves, not throwaway.
• search_permission_newtab manifest search permission combined with newtab override enables search engine monetization.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Totoro In The Rain Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.55 -> 7.05 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulating search provider; medium risk for a NewTab extension.
• host_permissions: https://api.gameograf.com/* low Scoped to developer-owned API domain only; low blast radius.
• chrome_url_overrides.newtab medium Replaces new-tab page — core monetization surface for search/ad injection.

Pillar Scores

Bookkeeping