CVE-2026-14558

WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder

Published Aug 28, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
The User Frontend WordPress plugin before 4.3.10 does not properly validate field type definitions and deserialises user-controlled post metadata when rendering submitted posts, allowing users with Editor-level access and above to inject arbitrary PHP objects, which can lead to remote code execution when a suitable POP chain is present on the site.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions wp User Frontend
Vendors & Products Wordpress-extensions
Wordpress-extensions wp User Frontend
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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

Type Values Removed Values Added
Weaknesses CWE-502
Type Values Removed Values Added
Description The User Frontend WordPress plugin before 4.3.10 does not properly validate field type definitions and deserialises user-controlled post metadata when rendering submitted posts, allowing users with Editor-level access and above to inject arbitrary PHP objects, which can lead to remote code execution when a suitable POP chain is present on the site.
Title WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 28, 2026, 1:03 PM
Reserved
Jul 3, 2026, 9:29 AM
Status
Deferred
Published
Aug 28, 2026, 8:16 AM
Modified
Aug 28, 2026, 6:40 PM