Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Sung Jinwoo Dagger Knight Killer Solo Leveling Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override enables high-reach search monetization on every new tab opened.
• Privacy policy URL returns fetch error — cannot verify data handling; scored as no policy.
• Uninstall and install URL hijacks both present — typical monetization shell pattern.
• Two innerHTML DOM-XSS sinks found without CSP; MV3 default CSP is strict but no explicit policy declared.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — every new tab captured by extension.
• 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
• privacy_policy_fetch_error api Privacy policy URL returned HTTPError on fetch; scored as unfetched (10.0 privacy pillar).
• dom_xss_sink crx innerHTML assigned from variable in js/popup.js and js/calendar.js; no CSP declared.
• no_developer_name store Developer name field is empty; reduced accountability despite verified_publisher==true.
• verified_publisher store Verified publisher badge present for gameograf.com (resolves, age 2051 days, 265 certs).
• search_permission_with_newtab manifest 'search' permission paired with newtab override; typical pattern for search-monetization shells.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Sung Jinwoo Dagger Knight Killer Solo Leveling Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.14 -> 7.64 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows read/override of search queries; paired with newtab override amplifies search monetization risk.
• chrome_url_overrides.newtab high Replaces every new tab; high-reach surface for ad injection and search monetization.
• host_permissions: https://api.gameograf.com/* low Scoped to dev-owned API domain; limited blast radius.

Pillar Scores

Bookkeeping