Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Spider-Man Live Wallpaper New Tab [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab — persistent monetization/tracking surface on all browsing sessions.
• Uninstall and install URL hijacks redirect users to developer site with UTM tracking on every install/uninstall.
• No CSP declared (MV3, so no v2 +2 penalty, but innerHTML sink in popup.js is unmitigated).
• 14 months without update on a newtab extension increases abandonment/acquisition risk.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new tab.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=gameograf&utm_campaign=bg — 3rd-party hijack +3.0 Webstore.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install — install hijack +2.0 Webstore.
• dom_sink_innerhtml_userctrl crx js/popup.js: innerHTML assigned from variable with no CSP guard — DOM-XSS risk.
• verified_publisher store Verified publisher badge present; -3.0 Reputation, but capped per 0c (months_since_update=14 <18, no CVEs).
• no_developer_name store developer_name is empty string — reduces accountability signal.
• privacy_policy_adequate api Policy fetched, scoped, data_collection+retention+third_party_sharing all true — Privacy score +1.0.
• stale_14mo store 14 months since last update (6-24mo band) → Maintenance +6.0.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Spider-Man Live Wallpaper New Tab [adware] + malext.io malicious_extension_sentry; score 4.27 -> 6.77 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search settings; paired with newtab override this is a monetization surface.
• host_permissions: https://api.gameograf.com/* low Scoped to own API domain only; limits exfil surface to dev-controlled endpoint.
• chrome_url_overrides.newtab medium Replaces every new tab; persistent reach on all browsing sessions.

Pillar Scores

Bookkeeping