Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — One Piece Cursor - Custom Anime Cursor for Chrome [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Uninstall URL hijack to tabplugins.com ad/referral page — confirmed traffic monetization on removal.
• Install URL hijack — opens 3rd-party marketing URL on install, classic monetization shell pattern.
• broad host access (*://*/*) + scripting on an Entertainment cursor extension with no CSP — high-reach code injection surface.
• Privacy policy discloses third-party data sharing but lacks retention period; data collection scope confirmed.

Evidence

• uninstall_url_hijack manifest setUninstallURL → tabplugins.com/cursors/ with UTM tracking; +3.0 Webstore.
• install_url_hijack manifest onInstalled opens tabplugins.com/one-piece-cursor/ with UTM params; +2.0 Webstore.
• broad_host_access manifest host_permissions *://*/* + content_scripts *://*/* grants access to every page visited.
• no_csp crx csp_present=false; MV3 default is strict but no explicit CSP; amplifies innerHTML finding.
• dom_sink_innerhtml crx innerHTML assignment found in main.4964ab1e.js — DOM-XSS risk surface.
• privacy_policy_third_party_sharing api Policy fetched, scope_extension=true, data_collection=true, third_party_sharing=true, retention=false.
• install_perm_anomaly store 511 installs + has_high_tier_permission=true → small_install_high_perm anomaly flagged.
• no_verified_publisher store verified_publisher=false, is_featured=false, rating=0 across 0 reviews; dev=WallExt/tabplugins.com.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — One Piece Cursor - Custom Anime Cursor for Chrome [adware] + malext.io malicious_extension_sentry; score 4.41 -> 6.91 (+2.5 cap 2.5).

Permissions Breakdown

• storage low Stores cursor preferences locally; low risk.
• unlimitedStorage low Allows large local storage; low standalone risk.
• scripting medium Enables programmatic script injection into pages; elevated when paired with broad host access.
• *://*/* high Broad host access covering all URLs; grants read/write capability on every visited site.

Pillar Scores

Bookkeeping