CVE-2021-47836

Summary

Markdown Explorer 0.1.1 contains a cross-site scripting vulnerability that allows attackers to inject malicious code through file uploads and editor inputs. Attackers can upload markdown files with embedded JavaScript payloads that execute in the application's privileged renderer context, allowing code execution on the host.

Affected Software

Weaknesses

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://www.vulncheck.com/advisories/markdown-explorer-persistent-cross-site-scripting

References

• https://www.exploit-db.com/exploits/49826
• https://github.com/jersou/markdown-explorer
• https://imgur.com/a/w4bcPWs
• https://www.vulncheck.com/advisories/markdown-explorer-persistent-cross-site-scripting

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