Top Risks

• NewTab override with uninstall+install URL hijack to gameograf.com — monetization shell pattern.
• Both onInstalled and onUninstalled redirect to developer domain with UTM tracking params.
• Two innerHTML DOM-XSS sinks (popup.js, calendar.js) with no CSP to mitigate.
• No developer name listed; verified publisher status provides limited accountability for a wallpaper/NewTab hybrid.
• 12 external JS hosts including Google services used without content_scripts — broad reach for a simple wallpaper.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new tab 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 assigned from variable in popup.js and calendar.js; csp_present=false amplifies risk.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening declared.
• verified_publisher store Publisher verified; domain gameograf.com resolves, looks_throwaway=false.
• privacy_policy api Policy fetched, scoped, discloses data collection, retention, third-party sharing — fully adequate.
• low_installs store Only 21 installs; no rating. Limited blast radius but monetization patterns still present.

Permissions Breakdown

• search medium Can interact with browser search functionality; paired with newtab override raises monetization concern.
• host_permissions: https://api.gameograf.com/* low Scoped to developer-controlled domain only; acceptable for wallpaper data fetch.
• chrome_url_overrides.newtab medium Replaces new-tab page — high-reach surface, monetization vector, scored per v2 calibration (a).

Pillar Scores

Bookkeeping