Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Yelan Genshin Impact Gameograf [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab page — persistent, high-reach monetization/tracking surface.
• Install and uninstall URL hijacks redirect to gameograf.com UTM links on both events.
• No CSP declared (MV3 default applies) combined with innerHTML DOM-XSS sink in popup.js.
• Extension stale 15 months; not verified publisher, not featured.

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=gameograf&utm_medium=link&utm_campaign=bg&utm_content=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install&utm_medium=link&utm_campaign=bg&utm_content=install
• dom_xss_sink crx innerHTML assigned from variable in js/popup.js with no CSP; DOM-XSS risk.
• fan_theme_shell store Anime game character (Yelan/Genshin Impact) themed NewTab with search override — monetization shell pattern.
• maintenance_stale store Last updated June 2025; 15 months since update — no verified publisher or featured badge.
• privacy_policy_adequate api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• no_cve crx jquery 3.7.1 bundled — no CVEs found in cve_findings_raw. CVE pillar = 0.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Yelan Genshin Impact Gameograf [adware] + malext.io malicious_extension_sentry; score 4.72 -> 7.22 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding or querying the browser search API; medium risk on its own.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; low risk in isolation.
• chrome_url_overrides.newtab medium Replaces every new tab page; persistent, high-reach surface with monetization potential.

Pillar Scores

Bookkeeping