Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Pac-Man Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall+install URL hijack to gameograf.com — classic traffic-monetization shell pattern.
• search permission + newtab override: strong monetization-shape pairing even with no detected redirects.
• DOM-XSS sink (innerHTML from variable) in calendar.js with no CSP, amplifying injection risk.
• No developer name listed; low install count (97) with high-impact newtab override raises tail-attack-surface concern.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab for all users.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install
• search_permission_with_newtab manifest search permission paired with newtab override is a known monetization pattern.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• dom_xss_sink crx innerHTML assigned from variable in js/calendar.js with no CSP — DOM-XSS risk.
• no_developer_name store developer_name is empty string; reduces accountability signals.
• verified_publisher store Extension has verified_publisher=true; applied -3.0 reputation discount.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Pac-Man Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.63 -> 5.13 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying the browser's search engine; paired with newtab override raises monetization concern.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces every new tab; high-reach surface for monetization/tracking.

Pillar Scores

Bookkeeping