CVE-2026-4882
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductUser Registration Advanced Fields
PublishedMay 2, 2026
First seenMay 2, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WPEverest User Registration Advanced Fields | v ≤ 1.6.20 | — |
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