{"metadata": {"vulnerability": "CVE-2026-54701", "count": 10, "kinds": {"milestone": 3, "sighting": 1, "kev": 0, "other": 6}, "linked_omitted": 0}, "data": [{"timestamp": "2026-06-15T22:58:06.563Z", "date_only": false, "value": "2026-06-15T22:58:06.563Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-14T19:11:51.712Z", "date_only": false, "value": "2026-10-14T19:11:51.712Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-14T19:11:51.712Z", "date_only": false, "value": "2026-10-14T19:11:51.712Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-54701", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-14T20:17:47.580Z", "date_only": false, "value": "2026-10-14T20:17:47.580", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-54701", "record": "FKIE_CVE-2026-54701", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-15T00:08:06.363Z", "date_only": false, "value": "2026-10-15T00:08:06.363819Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117442011845754690", "record": "CVE-2026-54701", "field": "creation_timestamp", "uuid": "dc42d202-bb69-412a-a36a-c77c19b94260", "content": "CVE-2026-54701 Markdown Preview Enhanced: Stored XSS via Unsanitized `.crossnote/head.html` Injection in Webview Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, Markdown Preview Enhanced reads repository-controlled .crossnote/head.html content and passes it through resolvePathsInHeader before inserting it into the head of the preview webview document without removing executable content. Script-capable markup executes while the document loads, before the React application and DOMPurify initialize, and can access acquireVsCodeApi to send messages from the webview to the extension host. Opening a Markdown preview in a malicious repository is sufficient to trigger the injected content, and no additional click within the notification or preview is required. This issue is fixed in version 0.8.30.\nhttps://www.cve.org/CVERecord?id=CVE-2026-54701https://github.com/shd101wyy/vscode-markdown-preview-enhanced/security/advisories/GHSA-mcwg-4j78-qwv3https://github.com/shd101wyy/crossnote/pull/444https://github.com/shd101wyy/vscode-markdown-preview-enhanced/pull/2323https://github.com/shd101wyy/crossnote/commit/8c55a2ba3365712a1caa4abeece0383bc2994d48https://github.com/shd101wyy/vscode-markdown-preview-enhanced/commit/8bc848b6cbb42b9f35a0f95f7c3bf29b8302970ehttps://github.com/shd101wyy/crossnote/releases/tag/0.9.31https://github.com/shd101wyy/vscode-markdown-preview-enhanced/releases/tag/0.8.30#shd101wyy #vscode-markdown-preview-enhanced#CVE_2026_54701#bot", "url": "https://infosec.exchange/users/cve/statuses/117442011845754690"}, {"timestamp": "2026-10-20T02:00:52.506Z", "date_only": false, "value": "2026-10-20T02:00:52.506160Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-54701", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-20T02:00:52.506Z", "date_only": false, "value": "2026-10-20T02:00:52.506160Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-54701", "record": "FKIE_CVE-2026-54701", "field": "metrics.ssvcV203.0.ssvcData.timestamp", "linked_record": true}, {"timestamp": "2026-10-20T02:01:15.836Z", "date_only": false, "value": "2026-10-20T02:01:15.836Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-20T02:01:15.836Z", "date_only": false, "value": "2026-10-20T02:01:15.836Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-54701", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-20T03:17:15.347Z", "date_only": false, "value": "2026-10-20T03:17:15.347", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-54701", "record": "FKIE_CVE-2026-54701", "field": "lastModified", "linked_record": true}], "metrics": {"as_of": "2026-11-11T16:55:52.296Z", "anchors": {"origin": {"timestamp": "2026-10-14T19:11:51.712Z", "date_only": false, "value": "2026-10-14T19:11:51.712Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-14T19:11:51.712Z", "date_only": false, "value": "2026-10-14T19:11:51.712Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 2411040.584649, "hours": 669.7334957358333, "days": 27.905562322326386, "min_seconds": 2411040.584649, "max_seconds": 2411040.584649, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-14T19:11:51.712Z", "date_only": false, "value": "2026-10-14T19:11:51.712Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54701", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-11T16:55:52.296Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}