Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Hatsune Miku Glitch Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab — prime surface for search/ad monetization.
• Uninstall and install URL hijacks redirect to gameograf.com with UTM tracking params.
• Two innerHTML DOM-XSS sinks (popup.js, calendar.js) with no CSP to mitigate.
• No developer name listed; verified publisher status partially offsets but reduces accountability.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab for all users.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=extension&utm_medium=install.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install.
• dom_xss_sinks crx Two dom_sink_innerhtml_userctrl findings in popup.js and calendar.js; no CSP present.
• no_csp manifest content_security_policy is null — no CSP to mitigate XSS risks from innerHTML sinks.
• verified_publisher store Developer gameograf.com is verified; domain resolves and is not throwaway.
• privacy_policy_adequate api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• no_developer_name store developer_name is empty string; reduces accountability despite verified publisher badge.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Hatsune Miku Glitch Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.95 -> 5.45 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading search terms; medium risk in a NewTab/search-override context.
• chrome_url_overrides.newtab high Replaces every new tab — high-reach surface for ad monetization and search hijack.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; contained risk.

Pillar Scores

Bookkeeping