Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Anime Girl in Winter Live Wallpaper Gameograf [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy URL returned fetch error — treated as no policy; data handling completely unknown.
• Uninstall and install URL hijacks open gameograf.com with tracking UTM params — monetization shell pattern.
• NewTab override combined with search permission is a classic ad-monetization surface.
• No CSP (csp_present=false) + innerHTML sinks in popup.js and calendar.js expose DOM-XSS risk.

Evidence

• privacy_policy_fetch_failed api Privacy policy URL https://gameograf.com/privacy-policy/ returned HTTPError; treated as fetched==false → +10.0 privacy.
• uninstall_url_hijack crx chrome.runtime.setUninstallURL points to https://gameograf.com/?utm_source=gameograf&utm_campaign=bg — +3.0 webstore.
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install — +2.0 webstore.
• newtab_override manifest chrome_url_overrides.newtab = newtab.html; paired with search permission → newtab+monetization pattern +2.0 webstore.
• no_csp manifest csp_present=false on MV3 extension; innerHTML sinks without CSP guard elevate DOM-XSS risk.
• dom_sink_innerHTML crx Two innerHTML-from-variable sinks in popup.js and calendar.js; csp_present=false → +2.0 code quality each (FIX B).
• developer_name_missing store developer_name is empty string; reduces accountability despite verified_publisher=true.
• verified_publisher store verified_publisher=true; applies -3.0 reputation discount but capped per 0c check (no staleness/CVE issues).
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Anime Girl in Winter Live Wallpaper Gameograf [adware] + malext.io malicious_extension_sentry; score 4.74 -> 7.24 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/overriding search provider; combined with newtab override raises monetization risk.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain only.
• chrome_url_overrides.newtab medium Replaces new-tab page — primary monetization vector for wallpaper/theme shells.

Pillar Scores

Bookkeeping