Jujutsu Kaisen Wallpapers New Tab Extension
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Risk Score
4.41
Risk Level:
Medium
Recommendation:
🚫 BLOCK
Top Risks
- Google privacy policy used as extension policy — admits data collection and 3rd-party sharing with no extension scope.
- Operator cluster: 27 sibling extensions under same developer email; mass NewTab monetization factory.
- Both install and uninstall URL hijacks redirect users to gameograf.com tracking URLs.
- NewTab override with search permission and developer email tracking 26-extension install-URL pattern.
- DOM-XSS innerHTML sink in popup.js without CSP protection.
Evidence
- privacy_policy_google_generic store Policy URL is Google's own policy (scope_extension=false, data_collection=true, third_party_sharing=true) → +10.0 privacy per v3.5 rule D.
- operator_cluster_siblings api sibling_count=5 compound; dev_email matches 27 extensions. Mass NewTab shell factory pattern.
- uninstall_url_hijack crx chrome.runtime.setUninstallURL → gameograf.com UTM tracking. +3.0 webstore.
- install_url_hijack crx onInstalled opens gameograf.com UTM tracking URL. +2.0 webstore.
- newtab_override_search_permission manifest chrome_url_overrides.newtab + search permission combo; NewTab monetization shell pattern.
- dom_sink_no_csp crx innerHTML sink in popup.js; csp_present=false on MV3 extension. DOM-XSS risk.
- maintenance_stale store months_since_update=16; 12-24mo band → +6.0 maintenance.
- no_developer_name store developer_name is empty string; verified_publisher=true but no displayed name.
Permissions Breakdown
- search medium Allows overriding search provider; medium risk for NewTab/search-redirect monetization.
- host_permissions: https://api.gameograf.com/* low Scoped to own API domain; low risk but enables outbound data calls.
- chrome_url_overrides.newtab medium Replaces every new tab page; high-reach surface for monetization and data collection.
Pillar Scores
Permissions4.00
Reputation4.50
Network2.00
Webstore8.50
Maintenance6.00
Privacy10.00
Code Quality2.50
CVE Exposure0.00
Operator Siblings (6)
Other extensions sharing this developer's compound fingerprint:
Bookkeeping
Rubric v3.6
Scored at 2026-09-16 04:13
Listing SHA
f930b615770c…
Force block
— not fired
Score recovered
no
Elapsed
—