Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — 67 Meme Dark Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page; high-reach monetization/tracking vector.
• Privacy policy is Google's generic policy — not scoped to this extension; admits data collection and 3rd-party sharing.
• Uninstall and install URL hijack to gameograf.com; tracks install/uninstall lifecycle for monetization.
• No CSP declared (MV3 default only); DOM-XSS sink (innerHTML) in calendar.js with no CSP mitigation.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; every new-tab session captured by extension.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?p=33375?utm_source=extension&utm_medium=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?p=33375?utm_source=extension&utm_medium=install
• generic_privacy_policy store Policy URL is Google's account privacy page; scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML assigned from variable in js/calendar.js with no CSP; DOM-XSS risk.
• no_csp manifest content_security_policy is null; csp_present=false on MV3 extension.
• verified_publisher store verified_publisher=true for gameograf.com; domain resolves; not throwaway.
• no_developer_name store developer_name is empty string; reduced identity accountability.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — 67 Meme Dark Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.39 -> 7.89 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can interact with search queries; medium risk alone but concerning in NewTab context.
• alarms low Schedules background tasks; low standalone risk.
• storage low Local data persistence; low risk.
• chrome_url_overrides.newtab high Replaces new-tab page; high reach over every browser session, monetization vector.
• host_permissions: https://api.gameograf.com/* medium Scoped to dev domain; allows outbound data transfer to operator-controlled server.

Pillar Scores

Bookkeeping