CVE-2025-9540

Medium

Description

The Markup Markdown WordPress plugin before 3.20.10 allows links to contain JavaScript which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

SeverityMedium
CVSS4.7
Exploit probability—
ProductMarkup Markdown
PublishedSep 22, 2025
First seenSep 22, 2025

How to fix

Update
  • Markup Markdown3.20.10 or later

Affected products

ProductAffected versionsFixed in
Markup Markdownv < 3.20.103.20.10

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Choose the product and enter the version you run to see whether it falls in the affected range.

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