Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Bad Bunny Wallpapers – Music Artist Backgrounds [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijack to chromewallpaper.com — classic monetization-shell tracking pattern.
• Install URL hijack opens chromewallpaper.com on install — unsolicited navigation to 3rd-party site.
• Privacy policy is Google's generic account policy — does not scope to this extension at all (admits data collection + 3rd-party sharing).
• New-tab override with search permission; external JS hosts include major platforms (YouTube, Netflix, Instagram) for potential monetization.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL targets https://chromewallpaper.com/uninstall — 3rd-party tracking on removal.
• install_url_hijack crx onInstalled opens https://chromewallpaper.com/bad-bunny-wallpapers-music-artist-backgrounds — unsolicited 3rd-party nav.
• newtab_override manifest chrome_url_overrides.newtab = index.html replaces every new tab with extension page.
• generic_privacy_policy store Policy URL is Google account policy (479KB); scope_extension=false, data_collection=true, third_party_sharing=true — D rule applies.
• free_webmail_no_dev_name store Developer email cananayartis@gmail.com, developer_name empty, no verified publisher badge.
• external_js_hosts crx JS contacts 8 domains: chatgpt.com, chrome.google.com, chromewallpaper.com, google.com, instagram.com, netflix.com, youtube.com, x.com.
• low_installs store Only 12 installs; zero ratings — no trust signal, tail-attack-surface with monetization shell pattern.
• csp_absent_mv3 manifest content_security_policy is null; MV3 provides default enforcement but no explicit CSP declared.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Bad Bunny Wallpapers – Music Artist Backgrounds [adware] + malext.io malicious_extension_sentry; score 5.49 -> 7.99 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding or reading search provider; paired with newtab override elevates monetization risk.
• chrome_url_overrides.newtab medium Replaces new-tab page entirely; primary vector for ad-monetization and search hijack.

Pillar Scores

Bookkeeping