{"id":"CVE-2026-46492","aliases":["GHSA-32q2-hhr5-6qvv"],"url":"https://o3.security/vulnerability/CVE-2026-46492","summary":"md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed)","details":"md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3.","published":"2026-06-09T16:09:29.077Z","modified":"2026-08-12T03:51:13.305810201Z","cvss":{"score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"md-fileserver","fixedVersion":"1.10.3"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/commenthol/md-fileserver/releases/tag/v1.10.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46492.json"},{"type":"ADVISORY","url":"https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46492"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:13.305810201Z"}}