Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Persona 5 royal chill cafe [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijack redirects to gameograf.com UTM-tracked page — monetization shell pattern.
• Install URL hijack opens 3rd-party gameograf.com page on install — adware pattern.
• NewTab override with search permission = high-reach traffic monetization surface on every new tab.
• Two innerHTML DOM-XSS sinks in popup.js and calendar.js with no CSP to mitigate.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL → https://gameograf.com/?utm_source=dekuy&utm_medium=dekuy
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=dekuy&utm_medium=dekuy
• newtab_override manifest chrome_url_overrides.newtab = newtab.html; search permission also declared.
• dom_xss_sink crx innerHTML from variable in js/popup.js and js/calendar.js; no CSP present.
• manifest_i18n_stubs manifest manifest_name and manifest_description are __MSG__ placeholders — obscures true function.
• no_csp manifest content_security_policy is null; MV3 default applies but DOM sinks are unmitigated.
• privacy_policy_adequate api Policy fetched, scoped, discloses data collection/retention/3rd-party sharing.
• low_installs store Only 27 installs; tail-attack-surface not flagged but extension is effectively untested in wild.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Persona 5 royal chill cafe [adware] + malext.io malicious_extension_sentry; score 4.23 -> 6.73 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/overriding search queries; standard for NewTab search-monetization shells.
• host_permissions: https://api.gameograf.com/* medium Scoped to dev-controlled API endpoint; extension actively contacts it.
• chrome_url_overrides.newtab high Replaces every new tab — high reach, primary monetization surface.

Pillar Scores

Bookkeeping