Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — SevenSales [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy points to Google's own policy — not scoped to this extension; admits data collection & third-party sharing.
• Uninstall AND install URL hijack flagged; install redirects to web.whatsapp.com suggesting tracking.
• Brand impersonation: extension uses 'WhatsApp' and 'Google' brands without being a confirmed owner.
• 10 distinct external wascript.com.br / watools.com.br API hosts contacted from a 66-install WhatsApp extension.

Evidence

• privacy_policy_generic_google store Privacy URL is Google's own policy (scope_extension=false, data_collection=true, third_party_sharing=true) — D clause applies: +10.0.
• uninstall_url_hijack + install_url_hijack crx Both onInstalled and uninstall URL hijacks flagged; install_url_target=https://web.whatsapp.com.
• brand_impersonation store brand_mention.is_impersonation=true for WhatsApp and Google; developer is not confirmed owner.
• js_external_hosts crx 10 distinct wascript.com.br/watools.com.br subdomains contacted; >3 distinct registrable domains.
• function_constructor crx new Function() in content script scoped to WhatsApp Web — dynamic code execution risk.
• dom_sink_innerhtml_userctrl crx innerHTML from variable with no CSP present — DOM-XSS sink elevated to +2.0 (csp_present==false).
• no_csp manifest content_security_policy is null (MV3 but csp_present=false); no inline-script protection.
• low_installs_high_external_surface store Only 66 installs but 334 JS files and 10 external API domains — disproportionate backend footprint.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — SevenSales [adware] + malext.io malicious_extension_sentry; score 5.38 -> 7.88 (+2.5 cap 2.5).

Permissions Breakdown

• unlimitedStorage low Allows unrestricted local storage; low direct harm but can cache large data.
• storage low Standard local key-value storage; minimal risk.
• alarms low Scheduled tasks; low risk, used for CRM reminders.
• tabs medium Can read tab URLs and titles; moderate surveillance surface.
• https://web.whatsapp.com/* medium Host permission scoped to WhatsApp Web; allows content injection into messaging session.

Pillar Scores

Bookkeeping