CVE-2026-4244Network attack vector

Arbitrary post authorship via unchecked author selection

Published Aug 22, 2026 · Updated Aug 22, 2026

Missing authorization in Metaphor Creations Post Duplicator 3.0.11 and earlier allows remote authenticated users to forge post authorship. The duplicate_post() handler accepts selectedAuthorId from the duplicate-post REST endpoint without verifying the edit_others_posts capability. Contributor-level access is sufficient to create a copied post attributed to any account, including an administrator, without altering that account.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Metaphor Creations Post Duplicator 3.0.11 and earlier allows remote authenticated users to forge post authorship. The duplicate_post() handler accepts selectedAuthorId from the duplicate-post REST endpoint without verifying the edit_others_posts capability. Contributor-level access is sufficient to create a copied post attributed to any account, including an administrator, without altering that account.

The record

CVE
CVE-2026-4244
Published
Aug 22, 2026
Updated
Aug 22, 2026
Vendor
Metaphor Creations
Product
Post Duplicator
Classifications
CWE-862, T1036
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Metaphor Creations · Post Duplicatorversion=0 <=3.0.11

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1036Masquerading

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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