Markup Markdown vulnerabilities
Plugin slug markup-markdown · 3 known vulnerabilities · latest disclosed 2025-09-01 · WordPress.org page
Every listed vulnerability has a fix. Version 3.20.10 or later is not affected by any of them. If your site runs an older version, update it.
0 of 3 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Markup Markdown
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.4 | <= 3.20.9 | 3.20.10 | CVE-2025-9540 | 2025-09-01 | Advisory |
| Medium 6.4 | <= 3.20.9 | 3.20.10 | CVE-2025-9541 | 2025-09-01 | Advisory |
| Medium 6.4 | <= 3.20.6 | 3.20.7 | CVE-2025-49420 | 2025-08-19 | Advisory |
Check if a site is affected
Enter a site address to see which version of Markup Markdown and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Markup Markdown plugin safe to use?
All 3 known issues are fixed in current versions (3.20.10 or later). Keeping it updated is what matters.
How do I check which version of Markup Markdown my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.