CVE-2026-4882

The User Registration Advanced Fields plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'URAF_AJAX::method_upload' function in all versions up to, and including, 1.6.20. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a "Profile Picture" field is added to the form.

Affected products

User Registration Advanced Fields

CVSS 3.1

9.8 CRITICAL

EPSS

0.7% (49th percentile)

Weakness

CWE-434

NVD status

Deferred

Published

2026-05-02