Top Risks

• NewTab override with uninstall/install URL hijack to gameograf.com — classic traffic-monetization shell pattern.
• Two innerHTML DOM-XSS sinks (popup.js, calendar.js) with no CSP present on MV3 extension.
• No developer name listed; developer_name field empty despite verified publisher status.
• Uninstall URL hijack confirmed: chrome.runtime.setUninstallURL() routes to third-party gameograf.com.
• Install URL hijack: onInstalled opens gameograf.com tracking URL with UTM parameters.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html — replaces every new tab.
• uninstall_url_hijack crx setUninstallURL to 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_sinks crx innerHTML assigned from variable in popup.js and calendar.js; csp_present=false raises DOM-XSS risk.
• no_csp manifest content_security_policy is null; MV3 has strict default but DOM sinks still exploitable via data.
• verified_publisher store gameograf.com verified publisher; domain resolves, not throwaway, privacy policy scoped and adequate.
• privacy_policy_classification api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• maintenance_stale store months_since_update=12; falls in 6-12 month band (+3.5).

Permissions Breakdown

• search medium Allows querying/overriding search; paired with newtab override increases search monetization risk.
• chrome_url_overrides.newtab medium Replaces new tab — primary surface for NewTab monetization shells.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.

Pillar Scores

Bookkeeping