Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Orange & Blue Smoke on a Black Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page — high-reach monetization/search-redirect surface.
• Uninstall and install URL hijack both redirect to gameograf.com affiliate-style UTM URLs.
• Two innerHTML DOM-XSS sinks without CSP; MV3 default CSP mitigates but does not eliminate risk.
• No developer name listed; verified publisher but thin identity signal for a wallpaper shell.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new-tab for all users.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install
• dom_xss_sinks crx innerHTML from variable in js/popup.js and js/calendar.js — DOM-XSS risk without CSP.
• verified_publisher store support@gameograf.com is a verified publisher; domain resolves and is not throwaway.
• privacy_policy_adequate api Policy at api.gameograf.com is scoped, declares collection, retention, and third-party sharing.
• no_cve_findings crx jquery 3.7.1 bundled — no CVEs found. cve_findings_raw is empty.
• low_installs_newtab store Only 11 installs with newtab override and search permission; monetization shell shape.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Orange & Blue Smoke on a Black Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 3.12 -> 5.62 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulation of search queries; relevant in a NewTab/search-provider context.
• host_permission: https://api.gameograf.com/* low Scoped to developer's own API domain; limits reach but enables data upload.
• chrome_url_overrides.newtab medium Replaces every new-tab page; high-reach, monetization vector, search-redirect risk.

Pillar Scores

Bookkeeping