Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Batman Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override combined with uninstall/install URL hijack — classic monetization shell pattern.
• Two innerHTML DOM-XSS sinks with no CSP; if API response is attacker-influenced, XSS is trivial.
• No developer name listed; unverified identity despite verified-publisher badge.
• Install and uninstall URL hijacks redirect to gameograf.com with UTM tracking on every install/uninstall.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html; replaces every new tab for all users.
• install_and_uninstall_url_hijack crx Both onInstalled and uninstall fire to gameograf.com with UTM params — monetization fingerprint.
• no_csp manifest content_security_policy is null; MV3 default applies but DOM-XSS sinks unmitigated.
• dom_xss_sinks crx innerHTML assigned from variables in popup.js and calendar.js without sanitization.
• no_developer_name store developer_name is empty string; identity accountability reduced.
• verified_publisher store verified_publisher=true; partial reputation credit applied but does not negate monetization signals.
• privacy_policy_scoped api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• jquery_3.7.1_no_cve crx jquery 3.7.1 bundled; no CVEs found in cve_findings_raw — clean library version.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Batman Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.83 -> 5.33 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search queries; medium risk for a NewTab override extension.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; expected for wallpaper data fetching.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary monetization vector for this extension category.

Pillar Scores

Bookkeeping