Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Superbike Live Wallpaper - New Tab Theme [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab — broad reach for a 10-install extension with monetization URL hooks.
• Uninstall and install URL hijacks redirect to gameograf.com with UTM tracking params.
• Two innerHTML DOM-XSS sinks with no CSP amplify injection risk if API data is attacker-influenced.
• No developer display name listed despite verified_publisher badge.

Evidence

• newtab_override manifest chrome_url_overrides.newtab replaces every new tab page — high reach, monetization surface.
• 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
• dom_xss_sinks crx innerHTML assignments in popup.js and calendar.js without CSP; DOM-XSS risk if API data tainted.
• no_csp manifest content_security_policy is null; MV3 default CSP applies but no explicit extension-page CSP.
• verified_publisher store gameograf.com resolves, not throwaway; verified publisher badge partially mitigates reputation risk.
• privacy_policy api Policy scoped to extension, discloses data collection, retention, and third-party sharing — adequate.
• search_override_combo manifest search permission + newtab override is monetization-shell fingerprint per rubric.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Superbike Live Wallpaper - New Tab Theme [adware] + malext.io malicious_extension_sentry; score 3.44 -> 5.94 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search provider; paired with newtab override raises monetization concern.
• host_permissions: https://api.gameograf.com/* low Scoped to dev-controlled API domain; consistent with wallpaper/config fetch.
• chrome_url_overrides.newtab medium Replaces every new tab — high-reach surface for monetization or content injection.

Pillar Scores

Bookkeeping