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.
Published: 2026-01-16
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

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History

Thu, 05 Mar 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Matthewwithanm
Matthewwithanm markdownify
CPEs cpe:2.3:a:matthewwithanm:markdownify:1.2.0:*:*:*:*:python:*:*
Vendors & Products Matthewwithanm
Matthewwithanm markdownify

Mon, 19 Jan 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Amitmerchant1990
Amitmerchant1990 markdownify
Vendors & Products Amitmerchant1990
Amitmerchant1990 markdownify

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'}


Subscriptions

Amitmerchant1990 Markdownify
Matthewwithanm Markdownify
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-05T01:28:49.731Z

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 : Deferred

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

Modified: 2026-04-15T00:35:42.020

Link: CVE-2021-47837

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-19T09:20:20Z

Weaknesses