CVE-2021-47837

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.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-01-16 19:16

Updated : 2026-01-26 15:05

NVD link : CVE-2021-47837

Mitre link : CVE-2021-47837

CVE.ORG link : CVE-2021-47837

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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