Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Anime Girl Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab with developer-controlled content; broad reach for a low-install extension.
• Uninstall and install URL hijacks redirect users to gameograf.com for tracking/monetization.
• No CSP defined (MV3 default helps but no explicit policy); innerHTML sinks in popup.js and calendar.js create DOM-XSS risk.
• Developer name missing from store listing; reduces accountability signal.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — hijacks every new tab page.
• 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_sink crx innerHTML assignments from variables in popup.js and calendar.js; no CSP to mitigate.
• no_csp manifest content_security_policy is null; csp_present=false on MV3 extension.
• developer_name_missing store developer_name is empty string; reduces accountability.
• verified_publisher store verified_publisher=true; gameograf.com resolves and is not throwaway.
• privacy_policy_scoped api Privacy policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Anime Girl Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.56 -> 5.06 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can read/override search queries; medium risk for a NewTab extension.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; low reach.
• chrome_url_overrides.newtab medium Replaces every new tab; high-reach monetization/tracking surface.

Pillar Scores

Bookkeeping