Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Sailor Moon Sweet Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with install/uninstall URL hijack — monetization shell pattern.
• Uninstall URL hijack to gameograf.com with UTM tracking on every removal.
• Install URL hijack opens gameograf.com on install — traffic monetization.
• No CSP (MV3) with two innerHTML DOM-XSS sinks in popup.js and calendar.js.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab.
• 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=lofi&utm_medium=install
• no_csp manifest content_security_policy is null; MV3 but no explicit CSP set.
• dom_xss_sinks crx Two innerHTML-from-variable sinks in popup.js and calendar.js with no CSP guard.
• verified_publisher store Developer gameograf.com is verified publisher; domain resolves, not throwaway.
• privacy_policy_adequate api Policy fetched, scoped to extension, discloses collection/retention/3rd-party sharing.
• no_developer_name store developer_name is empty string despite verified publisher badge.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Sailor Moon Sweet Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.07 -> 6.57 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can read/override search queries; medium risk on its own.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; low blast radius.
• chrome_url_overrides.newtab medium Replaces new tab — high-frequency intercept point for monetization.

Pillar Scores

Bookkeeping