GCVE-110-OSM-2026-11901

@aspect-adv-ui/consent-manager 2.4.1 declares a postinstall hook (`node setup.js`) that fires automatically on every `npm install`. setup.js issues an HTTPS GET to a hardcoded webhook.site inspection endpoint (https://webhook.site/kapper), sending install-event metadata (source IP, TLS/user-agent fingerprint) to an author-controlled third-party collector. The package is advertised as a small GDPR/CCPA consent-bar React component with no native build, no binary, and no legitimate install-time work; the postinstall exists solely to run this beacon. webhook.site is a public request-inspection service commonly used as an anonymous exfiltration/beacon endpoint, and the beacon is not disclosed or opt-in. ENTRY setup.js (install-hook: node setup.js) - Install Hook Executes Local JS File in package.json DESTINATION - 1 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - OAST/Interactsh Exfiltration in setup.js: "webhook.site" - Network Request in setup.js: "https.get(" PAYLOAD FILES setup.js