CVE-2021-47837

Summary

Markdownify 1.2.0 contains a persistent cross-site scripting vulnerability that allows attackers to store malicious payloads within markdown files. Attackers can upload crafted markdown files with embedded scripts that execute when the file is opened, potentially enabling remote code execution.

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/markdownify-persistent-cross-site-scripting

References

• https://www.exploit-db.com/exploits/49835
• https://github.com/amitmerchant1990/electron-markdownify
• https://imgur.com/a/T4jBoiS
• https://www.vulncheck.com/advisories/markdownify-persistent-cross-site-scripting

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