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python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues....

markdown2 Updated 02 Oct 2025

Summary

15/01/2020
CVE-2009-3724
Yes i
Moderate
6.1

CVE-2009-3724: python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues. Affects markdown2 versions < 1.0.1.14. Fixed in 1.0.1.14. How to fix ↓

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python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues.

How To Fix

Latest published version: 2.5.5 as of 23 Oct 2026 

pip install --upgrade "markdown2==2.5.5"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.0.1.14

This is the first release that contains the fix.

pip install --upgrade "markdown2==1.0.1.14"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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References

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Recent vulnerabilities recorded for markdown2.

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Sponsored Devnack Mobile apps built by Devnack Design, build and launch iOS and Android apps with a senior product team. From idea to store release Start a project

How To Fix

Latest published version: 2.5.5 as of 23 Oct 2026 

pip install --upgrade "markdown2==2.5.5"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.0.1.14

This is the first release that contains the fix.

pip install --upgrade "markdown2==1.0.1.14"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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