Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Land Rover Defender Wallpapers [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's own policy (not extension-scoped): admits data collection + 3rd-party sharing without disclosure for this extension.
• NewTab override + search permission = classic ad-monetization shell; uninstall/install URL hijack to gameograf.com confirms tracking.
• No developer name listed; verified publisher discount capped (months_since_update=15 < 18 but Google policy used as PP is non-compliant).
• innerHTML DOM-XSS sink in popup.js with no CSP present amplifies injection risk.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = index.html; replaces every new tab page.
• privacy_policy_generic_google store PP URL is myaccount.google.com/privacypolicy — Google's policy, not extension-scoped; data_collection+3rd_party_sharing=true.
• uninstall_url_hijack crx setUninstallURL → gameograf.com with UTM tracking parameters.
• install_url_hijack crx onInstalled opens gameograf.com with UTM tracking parameters.
• dom_xss_sink_no_csp crx dom_sink_innerhtml_userctrl in js/popup.js; csp_present=false amplifies risk.
• no_developer_name store developer_name is empty string; reduces accountability.
• maintenance_15mo store 15 months since last update; falls in 12-24mo band (+6.0 maintenance).
• verified_publisher store verified_publisher=true; discount applies but capped due to generic privacy policy.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Land Rover Defender Wallpapers [adware] + malext.io malicious_extension_sentry; score 4.43 -> 6.93 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows search provider manipulation; combined with newtab override raises monetization concern.
• 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; primary vector for ad-monetization and search hijacking.

Pillar Scores

Bookkeeping