Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Fu Xuan-Honkai Star Rail [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override enables search hijacking and ad-monetization on every new tab open.
• Both install and uninstall URL hijacks redirect users to gameograf.com campaign URLs.
• No CSP declared (MV3 but csp_present==false) combined with innerHTML DOM-XSS sinks in popup.js and calendar.js.
• Developer name absent; verified_publisher present but no sibling extensions to contextualize operator.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab page.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=gameograf&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 user-controlled sinks in js/popup.js and js/calendar.js with no CSP guard.
• no_csp manifest content_security_policy is null; csp_present==false on MV3 extension.
• verified_publisher store gameograf.com resolves, not throwaway, no bad-host hits, no monetization/affiliate hits.
• privacy_policy_classification api Policy fetched; scope_extension=true, data_collection=true, third_party_sharing=true, retention=true.
• low_install_newtab store Only 249 installs for a NewTab override extension; search_engine_count=1 (Google only).
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Fu Xuan-Honkai Star Rail [adware] + malext.io malicious_extension_sentry; score 3.17 -> 5.67 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search queries; combined with newtab override raises monetization risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces every new tab; prime surface for search hijacking and ad monetization.

Pillar Scores

Bookkeeping