{"id":"CVE-2026-86016","published":"2026-10-13T20:18:55.303","lastModified":"2026-10-16T20:04:29.760","description":"VNote is a note-taking platform. Prior to 4.3.0, VNote uses the assignment `preNode.innerHTML = p_metaData` in src/data/extra/web/js/markdownit.js to insert YAML frontmatter metadata into a pre element before the protectFromXss sanitization path runs. Opening an attacker-supplied Markdown note can therefore execute stored JavaScript in the file:// viewer context. Because QWebEngineSettings::LocalContentCanAccessRemoteUrls enables local content to access remote URLs, the script can read reachable local note files and transmit their contents to a remote server without further interaction after the note is opened. This issue is fixed in version 4.3.0.","cvssScore":8.2,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vnotex/vnote/commit/7371efde531312eb24beb982fb5fdd73469cb171","tags":[]},{"url":"https://github.com/vnotex/vnote/releases/tag/v4.3.0","tags":[]},{"url":"https://github.com/vnotex/vnote/security/advisories/GHSA-vfhj-c636-h59x","tags":[]}],"exploitRefs":[{"url":"https://github.com/vnotex/vnote/commit/7371efde531312eb24beb982fb5fdd73469cb171","tags":[]},{"url":"https://github.com/vnotex/vnote/releases/tag/v4.3.0","tags":[]},{"url":"https://github.com/vnotex/vnote/security/advisories/GHSA-vfhj-c636-h59x","tags":[]}],"hasPoc":true,"ai":null}