Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — 67 Meme Matrix Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override with search permission = classic search-monetization shell; uninstall+install URL hijack confirms funnel intent.
• Privacy policy is Google's own policy (not scoped to this extension) yet extension collects/shares data — effectively no disclosure.
• No CSP on MV3 newtab + innerHTML DOM sink in calendar.js = DOM-XSS exposure.
• Uninstall and install URL hijack both confirmed — aggressive traffic monetization pattern.

Evidence

• newtab_override_with_search_perm manifest chrome_url_overrides.newtab set + 'search' permission declared; canonical search-monetization combo.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?p=33382?utm_source=extension&utm_medium=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?p=33382?utm_source=extension&utm_medium=install
• generic_privacy_policy store Policy URL is Google's own account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• no_csp manifest content_security_policy is null; csp_present=false on MV3 with innerHTML sink in calendar.js.
• dom_xss_sink crx js/calendar.js: gridEl.innerHTML = html — user-controlled DOM sink, no CSP mitigation.
• developer_name_missing store developer_name is empty string; no 'Offered by' identity surfaced in listing.
• verified_publisher store verified_publisher=true but monetization hijack signals present; 0c cap applies, discount limited to -1.0.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — 67 Meme Matrix Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.45 -> 7.95 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can intercept/modify search queries; combined with newtab override raises monetization risk.
• alarms low Schedules background tasks; low standalone risk.
• storage low Local data persistence; minimal risk.
• chrome_url_overrides.newtab high Full newtab replacement; prime surface for search monetization and tracking.
• host_permissions: https://api.gameograf.com/* medium Allows data exfil to developer-controlled API; scoped but opaque.

Pillar Scores

Bookkeeping