The Enable Media Replace WordPress plugin before 4.2.3 does not restrict the classes allowed when deserializing stored metadata during its media replace-and-update-links routine, allowing unauthenticated users to inject a PHP object that is instantiated when a user with upload access performs a routine media replacement, resulting in PHP Object Injection and local file inclusion of existing PHP/HTML files, which can be escalated to remote code execution where an attacker-influenced PHP or HTML file is present on the server. This is a regression of CVE-2023-4643, which was fixed in 4.1.3 and reintroduced in 4.1.4.
History

Fri, 30 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 30 Oct 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions enable Media Replace
Vendors & Products Wordpress-extensions
Wordpress-extensions enable Media Replace

Fri, 30 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Description The Enable Media Replace WordPress plugin before 4.2.3 does not restrict the classes allowed when deserializing stored metadata during its media replace-and-update-links routine, allowing unauthenticated users to inject a PHP object that is instantiated when a user with upload access performs a routine media replacement, resulting in PHP Object Injection and local file inclusion of existing PHP/HTML files, which can be escalated to remote code execution where an attacker-influenced PHP or HTML file is present on the server. This is a regression of CVE-2023-4643, which was fixed in 4.1.3 and reintroduced in 4.1.4.
Title Enable Media Replace 4.1.4 - 4.2.2 - Unauthenticated PHP Object Injection via Metadata Replacer
References

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-10-30T06:00:22.558Z

Updated: 2026-10-30T13:26:47.999Z

Reserved: 2026-10-21T12:57:27.530Z

Link: CVE-2026-114422

cve-icon Vulnrichment

Updated: 2026-10-30T13:19:44.492Z

cve-icon NVD

Status : Deferred

Published: 2026-10-30T06:16:44.770

Modified: 2026-10-30T17:49:38.703

Link: CVE-2026-114422

cve-icon Redhat

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