Yoast Duplicate Post vulnerabilities
Plugin slug duplicate-post · 5 known vulnerabilities · latest disclosed 2026-03-17 · WordPress.org page
Every listed vulnerability has a fix. Version 4.6 or later is not affected by any of them. If your site runs an older version, update it.
1 of 5 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Yoast Duplicate Post
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.4 | <= 4.5 | 4.6 | CVE-2026-1217 | 2026-03-17 | Advisory |
| Medium 4.4 | <= 3.2.3 | 3.2.4 | CVE-2019-25314 | 2026-02-11 | Advisory |
| Medium 5.5 | < 3.2.4 | 3.2.4 | CVE-2019-25314 | 2019-09-26 | Advisory |
| Critical 9.8 | <= 2.5 | 2.6 | CVE-2014-10379 | 2014-08-01 | Advisory |
| Medium 6.1 | <= 2.6 | 3.0 | CVE-2014-10378 | 2014-08-01 | Advisory |
Check if a site is affected
Enter a site address to see which version of Yoast Duplicate Post and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Yoast Duplicate Post plugin safe to use?
All 5 known issues are fixed in current versions (4.6 or later). Keeping it updated is what matters.
How do I check which version of Yoast Duplicate Post 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.