CVE-2026-4882 Details
Description
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.
A vulnerability allowing arbitrary file uploads has been identified in the User Registration Advanced Fields plugin for WordPress, affecting all versions through 1.6.20. The issue arises from inadequate file type validation in the 'URAF_AJAX::method_upload' function, enabling unauthenticated attackers to upload arbitrary files to the server. This vulnerability could potentially lead to remote code execution, but exploitation requires the addition of a 'Profile Picture' field to the form.
Users are advised to update the User Registration Advanced Fields plugin to version 1.6.21 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 2, 2026CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| User Registration Advanced Fields | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 2, 2026 | New CVE Received | [email protected] |
Volerion