Vulnerability Database

322,905

Total vulnerabilities in the database

CVE-2021-47839

Marky 0.0.1 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.

  • Published: Jan 16, 2026
  • Updated: Jan 17, 2026
  • CVE: CVE-2021-47839
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.2
  • AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N