GCVE-110-OSM-2026-12510

@uh-platform/webcard@99.0.0 declares a preinstall hook that runs index.js, which shells out to curl against a unique Burp Collaborator subdomain at http://pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/. This fires unconditionally on npm install and confirms code execution and DNS/HTTP callback from the installer's host to an attacker-controlled out-of-band collector. The package version is 99.0.0 under an org scope with a self-referential dependency on @uh-platform/webcard@1.0.2 and a redacted SDK description, matching the canonical dependency-confusion shape aimed at hijacking resolution of an internal scoped package name. ENTRY index.js (install-hook: node index.js) - Install Hook Executes Local JS File in package.json DESTINATION - 2 exfil (oast, custom-c2) (values recorded in verified_iocs) EXFIL - OAST/Interactsh Exfiltration in index.js: "oastify.com" - Suspicious Domain in index.js: "oastify.com" ADDITIONAL FINDINGS - Shell Command Execution in index.js: "require("child_process")" - Brand New Package - Very New NPM Publisher Account PAYLOAD FILES index.js