GCVE-110-OSM-2026-13299

css-ogojwh-polyfill@1.0.0 presents itself as a CSS polyfill but ships thunderboltRegistry.js which, on require, runs an IIFE that executes shell commands via child_process.execSync (id, whoami, uname -a, ifconfig/ip addr, cat /etc/hosts) and POSTs their output along with hostname, Node version, platform and pid to the hardcoded endpoint http://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f, with a beacon label of `rce-poc`. The module also exports no-op Proxy stubs under module names matching Wix thunderbolt registry modules (thunderboltRegistry, siteAssetsRegistry, editorRegistry), consistent with a dependency-confusion / typosquat shim whose only real behavior is the recon-and-exfil payload executed at import time. ENTRY index.js (main: index.js) DESTINATION - 2 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Data Encoding for Exfiltration in thunderboltRegistry.js: "encodeURIComponent(site)).catch(function(){}); } catch(e" - System Information Collection in thunderboltRegistry.js: "process.platform" ADDITIONAL FINDINGS - Shell Command Execution in thunderboltRegistry.js: "require("child_process")" - Brand New Package - Very New NPM Publisher Account - Publisher Has Other Malicious Packages PAYLOAD FILES thunderboltRegistry.js