Is Yoast Duplicate Post safe to use?

Laskyr does not give safety verdicts. No known unpatched vulnerabilities in the latest version (4.7). As of 2026-11-01. 3 issues are on record for older versions; version 4.6 or newer fixes all of them that state a fix. Keep Yoast Duplicate Post on the latest version (4.7) and remove it if you do not use it.

Which versions of Yoast Duplicate Post are vulnerable?

Known issues on record (newest first): Missing authorization check (4.5 and older, fixed in 4.6); Cross-site scripting (XSS) (older than 2.6, fixed in 2.6); SQL injection (older than 2.6, fixed in 2.6). The full list with sources is on this page.

What is the latest version of Yoast Duplicate Post?

4.7, according to wordpress.org (last updated 2026-10-06). It has 3+ million active installs.

What should I do if my Yoast Duplicate Post is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update duplicate-post). If you cannot update right away, deactivate it until you can. If you think the site was already attacked, run a free scan at https://laskyr.com/scan.

Plugins · duplicate-post · data as of 2026-11-01

Is Yoast Duplicate Post safe? Known vulnerabilities and latest version

Latest version: 4.7
Last updated: 2026-10-06
Active installs: 3+ million
Known issues on record: 3
Unpatched in latest: 0
Tested up to WP: 7.1.4 · PHP 7.4+

The go-to tool for cloning posts and pages, including the powerful Rewrite & Republish feature. — by Yoast

What to do

Update to the latest version (4.7). Anything older than 4.6 has at least one known issue listed below. Dashboard → Updates, or Plugins → “update now”.
If you cannot update right away, deactivate it until you can.
Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.

With WP-CLI: wp plugin get duplicate-post --field=version shows what you run; wp plugin update duplicate-post updates it.

Check your version

Known vulnerabilities

3 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.

medium 5.4 CVE-2026-1217 · published 2026-03-18

Missing authorization check in Yoast Duplicate Post (4.5 and older)

Affected: 4.5 and older
Fixed in: 4.6 *
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Yoast Duplicate Post plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the clone_bulk_action_handler() and republish_request() functions in all versions up to, and including, 4.5. This makes it possible for authenticated attackers, with Contributor-level access and above, to duplicate any post on the site including private, draft, and trashed posts they shouldn't have access to. Additionally, attackers with Author-level access and above can use the Rewrite & Republish feature to overwrite any published post with their own content.

NVD CVE-2026-1217 Wordfence advisory Plugin source

medium 6.1 CVE-2014-10378 · published 2019-08-21

Cross-site scripting (XSS) in Yoast Duplicate Post (older than 2.6)

Affected: older than 2.6
Fixed in: 2.6
Access needed (per CVSS): No login needed; someone on the site has to click a link or open a page
Range from: NVD analysis · score by NVD

Details from the advisory

The duplicate-post plugin before 2.6 for WordPress has XSS.

NVD CVE-2014-10378 wordpress.org

critical 9.8 CVE-2014-10379 · published 2019-08-21

SQL injection in Yoast Duplicate Post (older than 2.6)

Affected: older than 2.6
Fixed in: 2.6
Access needed (per CVSS): No login needed
Range from: NVD analysis · score by NVD

Details from the advisory

The duplicate-post plugin before 2.6 for WordPress has SQL injection.

NVD CVE-2014-10379 wordpress.org

Recent activity

2026-10-06 — latest release on wordpress.org (4.7).
2026-03-18 — Missing authorization check disclosed (CVE-2026-1217), fixed in 4.6.
2019-08-21 — Cross-site scripting (XSS) disclosed (CVE-2014-10378), fixed in 2.6.
2019-08-21 — SQL injection disclosed (CVE-2014-10379), fixed in 2.6.

Free. We check the CVE feeds every day and email you only when a new issue for Yoast Duplicate Post (duplicate-post) is published or a fix ships. Unsubscribe in one click.

Where this data comes from

Version, last update, installs: wordpress.org/plugins/duplicate-post (Plugins API), fetched 2026-11-01.
Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-01. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.

Badge for your site or docs (states facts with a date, not a verdict):

<a href="https://laskyr.com/plugins/duplicate-post"><img src="https://laskyr.com/plugins/duplicate-post/badge.svg" alt="Yoast Duplicate Post vulnerability status"></a>

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Is Yoast Duplicate Post safe? Known vulnerabilities and latest version

No known unpatched vulnerabilities in the latest version (4.7)

What to do

Check your version

Known vulnerabilities

Missing authorization check in Yoast Duplicate Post (4.5 and older)

Cross-site scripting (XSS) in Yoast Duplicate Post (older than 2.6)

SQL injection in Yoast Duplicate Post (older than 2.6)

Recent activity

Get an email when Yoast Duplicate Post has a new vulnerability

Where this data comes from