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.
CVE-2026-1217 is a medium severity with CVSS 5.4 Vulnerability issue affecting the Plugin Yoast Duplicate Post. It affects Versions up to 4.5 and is fixed in 4.6.
Use the related hub and response guides to connect this CVE-2026-1217 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2026-1217 is tracked for the Plugin Yoast Duplicate Post as medium severity with CVSS 5.4. The affected range is Versions up to 4.5. Update Yoast Duplicate Post to 4.6 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 4.5.
Confirm Yoast Duplicate Post is updated to 4.6 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
duplicate-post
View on wordpress.org
|
| CVE | CVE-2026-1217 |
| Patched Versions |
4.6
|
| Affected Versions |
Versions up to 4.5
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Yoast Duplicate Post <= 2.5 - SQL Injection
Yoast Duplicate Post <= 2.6 - Cross-Site Scripting
Yoast Duplicate Post <= 3.2.3 - Authenticated (Admin+) Stored Cross-Site Scripting
Duplicate Post <= 3.2.3 - Authenticated (Administrator+) Stored Cross-Site Scripting
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