Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Boba Shop at Night Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with search permission — classic traffic-monetization surface.
• Uninstall and install URL hijack to gameograf.com tracking UTM parameters.
• No CSP present (MV3) — innerHTML DOM-XSS sinks in popup.js and calendar.js unmitigated.
• No developer name listed; extension contacts 12 external JS hosts including Google services.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces new-tab for all users.
• uninstall_url_hijack crx setUninstallURL points 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.
• no_csp manifest content_security_policy is null; csp_present == false on MV3 extension.
• dom_xss_sinks crx innerHTML used with variable input in popup.js and calendar.js — DOM-XSS risk without CSP.
• no_developer_name store developer_name is empty string; only email support@gameograf.com provided.
• verified_publisher store Extension carries verified publisher badge; reputation partially mitigated.
• search_permission_newtab manifest search permission combined with newtab override — monetization shell fingerprint.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Boba Shop at Night Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.83 -> 5.33 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying the browser search provider; relevant to NewTab/search-override pattern.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary monetization surface for this category.

Pillar Scores

Bookkeeping