{"id":"CVE-2026-54525","revision":"70b89a816e59403aa010776d108e27bf","records":[{"revision":"70b89a816e59403aa010776d108e27bf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54525","aliases":[],"title":"Markdown Preview Enhanced: One Click RCE via Markdown Link Command Injection on Windows","description":"Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.28, Markdown Preview Enhanced preview-link handling passes a decoded, Markdown-controlled link target to a Windows file-opening helper that invokes child_process.exec with the start command. When a Windows user opens an untrusted Markdown file and clicks a crafted external or unsupported-scheme link, shell metacharacters in the decoded target are interpreted by cmd.exe as command separators, allowing an attacker-selected command to run with the privileges of the current VS Code user. The attack requires one normal preview-link click but does not require malicious workspace configuration, script execution to be enabled, or additional files. This issue is fixed in version 0.8.28.","state":0,"publishedAt":"2026-10-14T19:06:59.44+00:00","modifiedAt":"2026-10-15T15:05:57.227+00:00","affected":[{"ecosystem":"Vendor product","name":"vscode-markdown-preview-enhanced","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"shd101wyy\",\n                    \"product\": \"vscode-markdown-preview-enhanced\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.8.28\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/shd101wyy/vscode-markdown-preview-enhanced/security/advisories/GHSA-7v6f-3vq6-r373","https://github.com/shd101wyy/crossnote/pull/442","https://github.com/shd101wyy/vscode-markdown-preview-enhanced/pull/2318","https://github.com/shd101wyy/crossnote/commit/5588ca2121c3da43fe331575dc5cf4ef347b91ee","https://github.com/shd101wyy/vscode-markdown-preview-enhanced/commit/dcd80281c986293b93d9f1af34ced64dcb230c77","https://github.com/shd101wyy/crossnote/releases/tag/0.9.29","https://github.com/shd101wyy/vscode-markdown-preview-enhanced/releases/tag/0.8.28"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54525","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54525","identifiers":["CVE-2026-54525"]},"retained":false,"historicalAffected":[]}],"coverage":[]}