Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Pokemon Pixel Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new-tab page with wallpaper/search monetization shell; high daily reach.
• Uninstall and install URL hijacks redirect to developer tracking URLs on every install/remove.
• Two innerHTML DOM-XSS sinks in popup.js and calendar.js with no CSP to mitigate.
• No CSP on MV3 extension with DOM-manipulation code and external JS host contact.

Evidence

• newtab_override manifest chrome_url_overrides.newtab=newtab.html — replaces every new-tab for all 297 users.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=gameograf&utm_medium=link&utm_campaign=bg&utm_content=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install&utm_medium=link&utm_campaign=bg&utm_content=install
• dom_xss_sink crx innerHTML assigned from variable in js/popup.js and js/calendar.js; no CSP mitigates.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening declared.
• verified_publisher store verified_publisher=true; domain gameograf.com resolves and is not throwaway.
• privacy_policy api Policy fetched, scoped to extension, discloses data collection, retention, and third-party sharing.
• no_developer_name store developer_name is empty string; reduces accountability despite verified publisher status.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Pokemon Pixel Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.11 -> 6.61 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading and manipulating search queries; medium risk on its own.
• host_permission: https://api.gameograf.com/* low Scoped to developer's own API domain; contained reach.
• chrome_url_overrides.newtab medium Replaces every new-tab page; high daily reach for a wallpaper/search monetization shell.

Pillar Scores

Bookkeeping