CVE-2021-47842: Jotron Studymd

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

StudyMD 0.3.2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts into markdown files. Attackers can upload crafted markdown files with embedded JavaScript payloads that execute when the file is opened, potentially enabling remote code execution.

Affected products

• Jotron Studymd: version 0.3.2 only

Published 2026-01-16. Last modified 2026-06-17.