Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Roblox Wallpapers [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Roblox brand impersonation by unaffiliated developer (gameograf.com); confirmed_owner=false.
• NewTab override + search permission = monetization shell; install/uninstall URL hijack confirmed.
• innerHTML DOM-XSS sink in popup.js with no CSP; content could be manipulated via api.gameograf.com.
• External JS host mlionltd.github.io is a third-party GitHub Pages domain with no stated purpose.

Evidence

• brand_impersonation store brand_mention.is_impersonation=true for 'roblox'; developer domain gameograf.com is not affiliated with Roblox.
• newtab_override manifest chrome_url_overrides.newtab set to index.html; replaces every new-tab page for all users.
• url_hijack crx Both install and uninstall URL hijacks confirmed targeting gameograf.com with UTM campaign parameters.
• external_host_third_party crx js_external_hosts includes mlionltd.github.io — unrecognized third-party GitHub Pages domain.
• dom_xss_sink crx innerHTML assigned from variable in js/popup.js with no CSP; DOM-XSS risk if api response is attacker-controlled.
• stale_extension store months_since_update=15; 6-12mo band scores +3.5 base; MV3 so no MV2 penalty.
• verified_publisher store verified_publisher=true but monetization_hits empty; discount not capped by v3.5(E) triggers.
• privacy_policy api Policy fetched, scoped to extension, data_collection+retention+third_party_sharing all true; adequate.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Roblox Wallpapers [adware] + malext.io malicious_extension_sentry; score 4.59 -> 7.09 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/modifying search queries; medium risk on its own but combined with newtab override elevates.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary monetization surface for wallpaper/NewTab shells.
• host_permissions: https://api.gameograf.com/* low Scoped to developer-controlled API domain; low blast radius.

Pillar Scores

Bookkeeping