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Vulnerabilities

Vulnerability · CVE-2026-2301

The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8.

Published Feb 25, 2026 · catalog updated Jun 17, 2026 · The Post Duplicator plugin

Check if you run it

No confirmed exploitation is on record for CVE-2026-2301. EPSS is 0.22%. Act only if a listed version of The Post Duplicator plugin is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Post Duplicator plugin).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Version ranges on file
Affected products
stated named in the record

The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the function in using directly to the table instead of WordPress's standard function, which would call to prevent lower-privileged users from setting protected meta keys (those starting with ). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary protected post meta keys such as , , and other sensitive meta keys on duplicated posts via the JSON array parameter in the REST API endpoint.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 3.0.8

How to fix CVE-2026-2301

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2301. EPSS is 0.22%. Act only if a listed version of The Post Duplicator plugin is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 3.0.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 25, 2026 · NIST NVD

    Detected

    The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the function in using directly to the table instead of WordPress's standard function, which would call to prevent lower-privileged users from setting protected meta keys (those starting with ). This makes it possible for authenti

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the function in using directly to the table instead of WordPress's standard function, which would call to prevent lower-privileged users from setting protected meta keys (those starting with ). This makes it possible for authenti

Sources

  • CVE.orgVulnerability recordCVE-2026-2301

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2301

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-2301

    The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the function in using directly to the t

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.