Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Mix Tape Universe Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab — persistent high-reach monetization surface.
• Uninstall URL hijack and install URL hijack route users to gameograf.com tracking URL.
• No developer name listed; unverified publisher with very low install count (24).
• Two innerHTML DOM-XSS sinks with no CSP — elevated XSS risk.

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=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install
• no_csp manifest content_security_policy is null — no CSP protection for MV3 extension pages.
• dom_xss_sinks crx innerHTML user-controlled assignments in popup.js and calendar.js without CSP.
• no_developer_name store developer_name is empty string; no verified publisher badge.
• search_permission_newtab manifest search permission + newtab override = traffic monetization cluster signal.
• privacy_policy_adequate api Policy fetched, scoped to extension, documents collection, retention, and 3rd-party sharing.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Mix Tape Universe Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.79 -> 7.29 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding default search provider — medium monetization risk.
• chrome_url_overrides.newtab high Replaces every new tab — high reach, monetization shell pattern.
• host_permissions: https://api.gameograf.com/* low Scoped to dev's own API domain only.

Pillar Scores

Bookkeeping