Top Risks

• NewTab override replaces new tab page — monetization/tracking surface with uninstall/install URL hijacking.
• Uninstall and install URL hijacks redirect to developer domain with UTM tracking parameters.
• Two innerHTML DOM-XSS sinks (popup.js, calendar.js) with no CSP to mitigate exploitation.
• No developer name listed on store; verified publisher badge partially mitigates but reduces transparency.
• Privacy policy discloses third-party data sharing; scope covers extension but data flow to third parties.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab page for all users.
• uninstall_url_hijack crx setUninstallURL points to gameograf.com with UTM params — traffic monetization signal.
• install_url_hijack crx onInstalled opens gameograf.com with UTM install params — monetization shell pattern.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• dom_sink_innerhtml_userctrl crx Two innerHTML sinks in popup.js and calendar.js with no CSP guard — DOM-XSS risk.
• verified_publisher store gameograf.com resolves, not throwaway, verified publisher badge present.
• privacy_policy_third_party_sharing api Privacy policy discloses data collection and third-party sharing; scoped to extension.
• no_developer_name store developer_name is empty string on store listing despite verified publisher status.

Permissions Breakdown

• search medium Allows reading search queries; medium risk for a NewTab/search override extension.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces new tab page — core monetization/tracking surface for NewTab shells.

Pillar Scores

Bookkeeping