Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Chosen Of The Wolf Katarina Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab — high-reach monetization surface with search override permission.
• Privacy policy is Google's own policy (not scoped to this extension); admits data collection and 3rd-party sharing.
• Uninstall URL hijack and install URL hijack redirect to gameograf.com tracking URLs.
• No CSP declared (MV3 default applies but csp_present=false); innerHTML sinks in popup.js and calendar.js risk DOM-XSS.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; combined with 'search' permission — classic NewTab monetization shell.
• privacy_policy_generic store Policy URL is Google's own account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=gameograf&utm_campaign=bg&utm_content=uninstall.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install&utm_campaign=bg&utm_content=install.
• dom_sink_innerhtml crx innerHTML assignments from variables in js/popup.js and js/calendar.js; no CSP present to mitigate.
• verified_publisher store Extension has verified_publisher=true; discount applied but capped due to no developer name listed.
• no_developer_name store developer_name is empty string; reduces accountability signal.
• cve_findings_empty api No CVEs detected; jquery 3.7.1 is patched version. CVE pillar = 0.0.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Chosen Of The Wolf Katarina Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.48 -> 7.98 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search provider; medium risk for NewTab/search-override pattern.
• host_permission: https://api.gameograf.com/* low Scoped to dev's own API domain; acceptable for wallpaper content fetch.
• chrome_url_overrides.newtab medium Replaces new-tab page; central monetization surface for this category.

Pillar Scores

Bookkeeping