{"items":[{"id":"NVI-00010970","kind":"supply_chain_event","title":"Malicious code in css-anchor-pos-fallback (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4ppq-v2jm-24mc"],"plain_summary":"GitHub lists this malware advisory for css-anchor-pos-fallback. 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-7b96151253cbacc03298258913ab6a21"],"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-7b96151253cbacc03298258913ab6a21","url":"https://github.com/advisories/GHSA-4ppq-v2jm-24mc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4ppq-v2jm-24mc","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:24.290Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7b96151253cbacc03298258913ab6a21"],"technology":"css-anchor-pos-fallback","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (bd0a6c8e1448ffd9abb3732872ea3d49280a422d49524aaa57d0b89a73812f05)\nThe package advertises itself as a CSS anchor-position polyfill but on require executes an IIFE in thunderboltRegistry.js that runs `id`, `whoami`, `uname -a`, `ifconfig`/`ip addr`, and reads `/etc/hosts`, then POSTs the collected output along with hostname, platform, and Node version via fetch to the hardcoded external endpoint http://dxpoc.gt.tc/callback.php/. The module also exports keys named after Wix thunderbolt internal registries (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry, etc.) with a bundled manifest referencing a parastorage.com unpkg URL, a shape consistent with dependency-confusion targeting of an internal Wix build pipeline. The advertised polyfill purpose is unrelated to shell execution, host reconnaissance, or outbound beaconing.\n\n---\n\nCredit: OpenSSF (source)","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.415Z","source_updated_at":"2026-10-05T00:30:40.000Z","source_disclosed_at":"2026-10-05T00:30:39.000Z","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":"2026-10-31T23:13:24.290Z"}],"next_cursor":null,"snapshot_revision":"42594"}