CVE-2026-4882

User Registration Advanced Fields <= 1.6.20 - Unauthenticated Arbitrary File Upload

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

WPEverest · User Registration Advanced Fields

CVSS v3.1 WORDFENCE

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.87% chance of exploitation in the next 30 days, 58th percentile

Published

2026-05-02

Updated

2026-05-04

Proof-of-concept exploits (1)

• xShadow-Here/CVE-2026-48821★ · 2026-05-16

References

• CVE Record
• NVD entry

Related

• CVE-2025-49071
• CVE-2026-0740
• CVE-2026-4885
• CVE-2026-8181