Top Risks

• proxy permission allows all browser traffic to be silently routed through attacker-controlled servers (app.myxavpn.pro, nimbusshield.space)
• install URL hijack opens nimbusshield.space on install — third-party monetization/tracking endpoint
• Privacy policy is Google's own policy, not scoped to this extension; admits data collection and third-party sharing
• Gmail developer with no developer name, 52 installs, and high-impact permission — tail attack surface
• JS contacts Russian-hosted (RU) and Dutch (NL) endpoints with no CSP; no code findings but surface is opaque

Evidence

• proxy_permission manifest proxy declared — can silently reroute all browser HTTP/HTTPS traffic to any server.
• install_url_hijack crx onInstalled opens https://nimbusshield.space/ — same host as external JS, monetization/tracking risk.
• external_js_hosts crx JS contacts app.myxavpn.pro, nimbusshield.space (RU-hosted), t.me (Telegram) — 3 distinct registrable domains.
• privacy_policy_generic store Policy URL is Google's own account policy; scope_extension=false, data_collection=true, third_party_sharing=true.
• free_webmail_no_devname store Developer email chatlak4512@gmail.com, no developer name, no business website.
• small_install_high_perm api Only 52 installs with HIGH-tier proxy permission — install_perm_anomaly.small_install_high_perm=true.
• host_geo_diversity crx JS hosts span NL and RU — country_count=2; RU-hosted VPN proxy is elevated risk.
• no_csp manifest content_security_policy is null; csp_present=false on MV3 extension with external host contacts.

Permissions Breakdown

• proxy high Full proxy control: can redirect all browser traffic through attacker-controlled servers.

Pillar Scores

Bookkeeping