Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Studio Fire Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override gives persistent reach into every new browser tab for a 9-install extension.
• Privacy policy URL unreachable (fetch_error); effective policy = none.
• Uninstall and install URL hijacks redirect to gameograf.com for traffic monetization.
• DOM-XSS sinks (innerHTML) in popup.js and calendar.js with no CSP, amplifying injection risk.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab page.
• 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
• privacy_policy_unreachable api fetch_error:ConnectionError on https://api.gameograf.com/gameograf-privacy-policy.html — treated as no policy.
• dom_xss_sink crx innerHTML used with variable input in popup.js and calendar.js; no CSP present.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• no_developer_name store developer_name is empty string; identity accountability reduced.
• verified_publisher store verified_publisher=true; partial trust signal, discount applied but limited by missing privacy policy.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Studio Fire Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.46 -> 7.96 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search provider; paired with newtab override raises monetization risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces every new tab — persistent reach into user browsing sessions.

Pillar Scores

Bookkeeping