Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Sydney Sweeney Live Wallpaper + AI Extensions New Tab [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override + uninstall/install URL hijack to gameograf.com — classic monetization shell pattern.
• Uninstall and install URL hijack both confirmed, scoring +3.0+2.0 in webstore signals.
• No CSP (csp_present=false) with innerHTML DOM-XSS sinks in popup.js and calendar.js — XSS risk.
• Developer name missing; verified publisher but no recognized org discount applicable (newtab override = HIGH-impact).

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install (+3.0 webstore)
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=extension&utm_medium=install (+2.0 webstore)
• newtab_override manifest chrome_url_overrides.newtab = newtab.html; replaces every new tab page.
• no_csp manifest content_security_policy is null; MV3 default CSP applies but no explicit hardening.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js without CSP — DOM-XSS risk.
• verified_publisher_newtab_override store Verified publisher discount capped at -1.0 per invariant 0b: newtab override is HIGH-impact capability.
• privacy_policy_full api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true → +1.0.
• developer_name_missing store developer_name is empty string; no 'Offered by' — +1.0 reputation.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Sydney Sweeney Live Wallpaper + AI Extensions New Tab [adware] + malext.io malicious_extension_sentry; score 4.16 -> 6.66 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding/querying search — medium risk on its own, elevated in NewTab context.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces every new tab — high-reach monetization surface.

Pillar Scores

Bookkeeping