vulnerability
WordPress Plugin: markup-markdown: CVE-2025-9540: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:S/C:P/I:P/A:N) | Sep 1, 2025 | Sep 26, 2025 | Sep 26, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:N)
Published
Sep 1, 2025
Added
Sep 26, 2025
Modified
Sep 26, 2025
Description
The Markup Markdown plugin for WordPress is vulnerable to Stored Cross-Site Scripting via markdown links in all versions up to, and including, 3.20.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Solution
markup-markdown-plugin-cve-2025-9540
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