{"items":[{"id":"NVI-00011148","kind":"supply_chain_event","title":"Malicious code in css-mpmdds-polyfill (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7f4m-pm4p-cp8q"],"plain_summary":"GitHub lists this malware advisory for css-mpmdds-polyfill. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-eeb54a229223250c6181fb7689804b10"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-eeb54a229223250c6181fb7689804b10","url":"https://github.com/advisories/GHSA-7f4m-pm4p-cp8q","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7f4m-pm4p-cp8q","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:05.881Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-eeb54a229223250c6181fb7689804b10"],"technology":"css-mpmdds-polyfill","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (4bac0cb0a2c693985668a890ff2ace72ff2d00dac60bc5470a77160c4d765106)\nThe package presents itself as a CSS polyfill but ships thunderboltRegistry.js which runs an IIFE at module load. The IIFE acquires child_process via multiple fallbacks (require('child_process'), require('node:child_process'), and a synthesized Module constructor), executes shell commands to collect host identity (id, whoami, uname -a, ifconfig/ip addr, /etc/hosts) along with os.hostname, Node version, platform and pid, and transmits each result via fetch() as query parameters to the hardcoded endpoint http://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f over plaintext HTTP to a free-DNS (gt.tc) host unrelated to any CSS polyfill functionality. The IIFE also enumerates require.cache and deletes entries containing 'thunderboltRegistry' so the payload re-executes on every require rather than being memoized. registry-manifest.min.json maps multiple Wix/thunderbolt internal registry module names (siteAssetsRegistry.js, editorRegistry.js, and others) all to the same thunderboltRegistry.js payload mirrored on static.parastorage.com's unpkg mirror, consistent with a dependency-confus","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.434Z","source_updated_at":"2026-10-05T06:30:31.000Z","source_disclosed_at":"2026-10-05T06:30:30.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:05.881Z"}],"next_cursor":null,"snapshot_revision":"42594"}