Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Blue Digital Grid Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall/install URL hijack — classic monetization shell pattern.
• Uninstall and install URL both redirect to gameograf.com with UTM tracking params.
• Two DOM-XSS innerHTML sinks (popup.js, calendar.js) with no CSP to mitigate.
• No developer name listed; low install count (11) limits blast radius but raises tail-attack 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
• dom_xss_sinks crx 2x innerHTML user-controlled assignments in popup.js and calendar.js; no CSP present.
• no_csp manifest content_security_policy is null; MV3 default applies but DOM sinks remain unmitigated.
• no_developer_name store developer_name field is empty string — reduces accountability.
• verified_publisher store Verified publisher badge present; discounts reputation risk partially.
• privacy_policy_adequate api Policy fetched, scoped to extension, discloses collection, retention, and third-party sharing.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Blue Digital Grid Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.70 -> 5.20 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying browser search; combined with NewTab override enables search interception.
• host_permissions: https://api.gameograf.com/* medium Scoped to developer API domain; used for wallpaper/calendar data fetch.
• chrome_url_overrides.newtab medium Replaces new-tab page — high daily-reach surface, monetization vector.

Pillar Scores

Bookkeeping