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.
History

Fri, 16 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Markdownify 1.2.0 - Persistent Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-16T21:09:54.575Z

Reserved: 2026-01-14T17:11:19.901Z

Link: CVE-2021-47837

cve-icon Vulnrichment

Updated: 2026-01-16T21:00:38.849Z

cve-icon NVD

Status : Received

Published: 2026-01-16T19:16:09.223

Modified: 2026-01-16T22:16:17.080

Link: CVE-2021-47837

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.