WordPress plugin
Markup Markdown security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 3 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High0
- Medium3
- Low0
All Markup Markdown vulnerabilities
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Markup Markdown: common questions
Does Markup Markdown have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in Markup Markdown: 3 medium. None are known to affect version null.
How do I check which version of Markup Markdown I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Markup Markdown vulnerability?
CVE-2025-9540, published Sep 1, 2025: Markup Markdown <= 3.20.9 - Authenticated (Contributor+) Stored Cross-Site Scripting. Severity: Medium (CVSS 6.4).
Is any Markup Markdown vulnerability listed in CISA KEV?
No. None of the known Markup Markdown vulnerabilities is currently listed in the CISA KEV catalog.