Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Jinx Arcane LoL Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with uninstall URL hijack and install URL hijack — classic monetization shell pattern.
• Verified publisher but no developer name listed; installs only 96 despite live store presence.
• months_since_update=14 means stale by >12mo; MV3 but no CSP declared.
• innerHTML sink in popup.js without CSP protection creates DOM-XSS surface.

Evidence

• uninstall_url_hijack + install_url_hijack manifest Both onInstalled and uninstall redirect to gameograf.com UTM URLs — monetization shell fingerprint.
• chrome_url_overrides.newtab manifest Replaces every new tab with newtab.html; persistent reach on all new-tab events.
• no CSP declared (csp_present=false, MV3) manifest MV3 default CSP applies but extension declares no explicit policy; innerHTML sink unmitigated.
• dom_sink_innerhtml_userctrl in popup.js crx popupContainer.innerHTML = html — DOM-XSS sink; no CSP to restrict script execution.
• verified_publisher=true, developer_name=empty store Verified publisher badge present but no public developer name; minor accountability gap.
• months_since_update=14 store Last updated June 2025; 14 months stale triggers +6.0 maintenance score.
• privacy_policy_classification api Policy fetched, scoped, data_collection=true, retention=true, third_party_sharing=true. Adequate.
• install_count=96 store Very low install count limits blast radius but does not reduce structural risk signals.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Jinx Arcane LoL Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.19 -> 6.69 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading search terms; relevant for 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; monetization vector, persistent reach on every new tab.

Pillar Scores

Bookkeeping