Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Gothic Lolita Kuromi Background from Sanrio [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page; install+uninstall URL hijack to gameograf.com indicates monetization shell.
• Uninstall and install URL hijack both fire to gameograf.com — classic traffic-monetization pattern.
• Two DOM innerHTML sinks (popup.js, calendar.js) with no CSP — DOM-XSS risk if API responses contain attacker-controlled data.
• No developer name listed; anonymous publisher behind verified badge reduces accountability.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces new-tab on every open.
• uninstall_url_hijack crx setUninstallURL to https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install
• 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 no explicit hardening.
• verified_publisher store Verified publisher badge present; developer domain gameograf.com resolves.
• privacy_policy_adequate api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• no_developer_name store developer_name field is empty string; reduces accountability despite verified publisher.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Gothic Lolita Kuromi Background from Sanrio [adware] + malext.io malicious_extension_sentry; score 3.22 -> 5.72 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying the default search engine; common in NewTab extensions but enables monetization.
• host_permissions: https://api.gameograf.com/* medium Scoped to developer API domain; enables outbound data exchange with developer backend.
• chrome_url_overrides.newtab medium Replaces new-tab page; high reach on every new-tab open, monetization surface.

Pillar Scores

Bookkeeping