Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Cute Retro My Melody Pink Cafe Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with search permission — classic ad-monetization shell pattern for low-install extension.
• Uninstall and install URL hijack both active, redirecting to gameograf.com with UTM tracking.
• Two innerHTML DOM-XSS sinks in popup.js and calendar.js with no CSP (MV3 strict default not declared).
• No developer name listed despite verified_publisher flag; manifest uses localized __MSG__ placeholders obscuring stated purpose.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; replaces every new-tab page for all users.
• uninstall_url_hijack crx setUninstallURL → 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 variables in js/popup.js and js/calendar.js; no CSP to mitigate.
• no_developer_name store developer_name is empty string despite verified_publisher=true.
• search_permission_newtab manifest search permission + newtab override + 139 installs = monetization shell fingerprint.
• privacy_policy_adequate api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• cve_clean crx jquery 3.7.1 bundled — no CVEs found. cve_findings_raw empty.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Cute Retro My Melody Pink Cafe Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.90 -> 5.40 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying/influencing search behavior; paired with newtab override raises monetization risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own domain for API calls; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary mechanism for this extension's monetization surface.

Pillar Scores

Bookkeeping