Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Oiiaoiia Cat Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic policy — does not scope to this extension; admits data collection and 3rd-party sharing (+10.0 privacy).
• New-tab override combined with install/uninstall URL hijacks signal monetization shell pattern.
• Uninstall URL hijack redirects to gameograf.com analytics endpoint.
• Install URL hijack opens 3rd-party marketing page on installation.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new-tab page.
• uninstall_url_hijack crx setUninstallURL targets gameograf.com UTM tracking endpoint.
• install_url_hijack crx onInstalled opens gameograf.com UTM install tracking URL.
• generic_privacy_policy api Policy URL is Google's account privacy policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js; no CSP to mitigate.
• no_csp manifest content_security_policy is null; MV3 default applies but innerHTML sinks remain exploitable.
• verified_publisher store verified_publisher=true; discount applied but capped due to generic policy.
• no_developer_name store developer_name is empty string; identity relies solely on email domain.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Oiiaoiia Cat Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.73 -> 7.23 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying the browser's default search engine programmatically.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces new-tab page — high-visibility surface, monetization vector.

Pillar Scores

Bookkeeping