CVE WatchOct 16, 2026

CVE-2026-86016

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/markdow

CVSS

8.2

High

EPSS

0.2%

p12

KEV

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Exploit Today

0-100

Published: Oct 13, 2026 · Last modified: Oct 16, 2026 · CWE-79

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-142026-10-20

Technical 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.

Official references

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