CVE-2026-2301Network attack vector

Protected post meta insertion via direct database write

Published Feb 25, 2026 · Updated Feb 25, 2026

Missing authorization in Metaphor Creations Post Duplicator 3.0.8 and earlier allows remote authenticated users to insert protected post metadata. The duplicate_post() function in includes/api.php writes customMetaData keys directly to wp_postmeta with $wpdb->insert(), bypassing the is_protected_meta() check applied by add_post_meta(). Contributor-level access to the duplicate-post REST endpoint is sufficient to set sensitive underscore-prefixed metadata on duplicated posts, enabling unauthorized changes to their internal attributes.

CVSS severity4.3
Medium
EPSS probability0.21%
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 3.0.8 and earlier allows remote authenticated users to insert protected post metadata. The duplicate_post() function in includes/api.php writes customMetaData keys directly to wp_postmeta with $wpdb->insert(), bypassing the is_protected_meta() check applied by add_post_meta(). Contributor-level access to the duplicate-post REST endpoint is sufficient to set sensitive underscore-prefixed metadata on duplicated posts, enabling unauthorized changes to their internal attributes.

The record

CVE
CVE-2026-2301
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
Metaphor Creations
Product
Post Duplicator
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=* <=3.0.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Metaphor Creations · Post Duplicatorversion=* <=3.0.8

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
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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